Leave Washington, DC around 7:00 AM via I-95 North toward Mystic, Connecticut. Plan on roughly 6–7 hours including fuel, traffic, and two or three dog breaks; the stretch through New York City, Bridgeport, and New Haven can add time, so avoid lingering at rest areas. A practical break is New Jersey Turnpike service areas, followed later by a short walk near Hammonasset Beach State Park if everyone needs more room—check current dog-access rules before entering. Arrive mid-afternoon at Residence Inn Mystic Groton, where onsite parking and in-room space make settling in with two dogs easy; confirm the hotel’s pet limit, fees, and any weight restrictions before booking.
After checking in, drive or walk into downtown Mystic for the Mystic River Bascule Bridge, about 30 minutes. The bridge usually opens on a regular daytime schedule, but timing can vary with marine traffic, so check the posted schedule or simply enjoy the boats and harbor activity while waiting. Continue along Mystic River Park for an easy 45-minute dog walk on the waterfront lawn and paths. Keep the dogs leashed, and bring water—there is plenty of open space, but limited shade close to the river.
Drive a few minutes to Olde Mistick Village, near Mystic Aquarium, for a relaxed hour browsing its pedestrian lanes and outdoor areas. Many shops welcome dogs outside, though individual policies vary; this is a good low-key stop after the long drive rather than a place to rush through. For dinner, head back downtown to The Engine Room, a casual restaurant in a restored industrial space with burgers, seafood, and craft beer, generally about $25–45 per person. Request dog-friendly outdoor seating in advance, since availability and seasonal opening dates can change in May; if the patio is full, one person can pick up takeout while the other stays with the dogs.
After arriving from Mystic, start at The Breakers on Bellevue Avenue, ideally around 9:00 AM. Allow about 90 minutes for the mansion tour; adult admission is typically in the $30–40 range, though 2027 pricing and timed-entry rules should be checked closer to the trip. Dogs cannot enter the mansion, so the easiest option is to have one person stay with them outside or use a prearranged dog sitter—never leave them in the car, even in May. From here, drive or walk toward Easton’s Beach and begin the Cliff Walk, heading south toward Narragansett Avenue. The 1.5-hour stretch is beautiful and manageable with dogs, but parts are uneven and rocky, so use sturdy shoes and keep both dogs leashed; spring wind can also make the exposed oceanfront feel cool.
Return to Bellevue Avenue for The Elms, allowing about an hour for the house and grounds. Dogs generally cannot enter the mansion, and garden access rules can vary, so confirm the current policy before buying tickets—roughly $25–35 per adult is a reasonable planning estimate. Afterward, drive downtown and park in a public lot rather than trying to find curb space; Bowen’s Wharf is an easy place to stretch your legs, with working boats, small shops, and harbor views. The wharf is especially pleasant in the afternoon, when it is lively but not yet at dinner crowds, and the open waterfront gives the dogs plenty of interesting smells without requiring another major walk.
Finish on Thames Street at The Red Parrot Restaurant, where you can request dog-friendly patio seating in advance. Expect about $25–45 per person for casual seafood and American dishes; patio availability is weather-dependent, so call ahead and ask specifically about bringing two dogs. If the patio is full, take a short post-dinner stroll back toward Bowen’s Wharf rather than lingering on crowded sidewalks. Newport’s historic center is compact, but its brick and cobblestone surfaces can be tiring for dogs, so keep the evening relaxed and return to your hotel before the harbor wind turns chilly.
Arrive at Long Wharf in Boston at least 30–45 minutes before the Bay State Cruise Company ferry; May schedules and pet policies should be reconfirmed for 2027. Keep both dogs leashed through boarding and bring water, waste bags, and a light layer—the ride can feel chilly on deck. The ferry takes about 90 minutes, and once you reach MacMillan Pier, Commercial Street is immediately walkable. Spend the late morning wandering toward the West End, ducking into small galleries and shops, and pausing at Ryder Street Pier for harbor views. Many businesses allow dogs only outside, so take turns browsing if needed.
Walk inland along Commercial Street and Bradford Street to Pilgrim Monument & Provincetown Museum, generally about 15–20 minutes from the pier. Allow an hour for the monument and museum; admission is typically around $20–25 for an adult, with seasonal hours often beginning around 9:00 or 10:00 AM. Dogs generally cannot enter the indoor museum, and the monument climb is not practical with them, so this is a good spot to use a brief kennel break or enjoy the surrounding grounds while one person visits. From the top, you get a wonderful sweep of Cape Cod Bay, the harbor, and the curved shoreline.
Drive or use a local taxi to Herring Cove Beach, roughly 10 minutes from downtown; parking is usually available near the entrance, though National Seashore fees and seasonal rules can change. Give the dogs a proper walk along the sand, but check the Cape Cod National Seashore’s May restrictions before going—leash requirements and protected-bird closures can affect where dogs are allowed. Return to town for dinner at The Canteen on Commercial Street, where the outdoor seating is the natural choice with dogs. Expect about $20–35 per person for lobster rolls, sandwiches, and sides; hours are seasonal and service can be busy, so an early dinner is easier. Afterward, stroll the quieter harbor end of Commercial Street rather than trying to fit in another attraction.
After the long drive from Provincetown, keep the morning easy and arrive in Kennebunkport around late morning. Start at Dock Square, the compact center of town, where you can stretch your legs, browse the small shops, and watch lobster boats and pleasure craft along the Kennebunk River. Allow about an hour; most shops generally open around 10:00 AM, and parking is easiest earlier in the day. This is a good place to pick up coffee and water for the dogs before continuing by car.
Drive roughly 10–15 minutes to Goose Rocks Beach for a quiet coastal walk of about 90 minutes. May is wonderfully uncrowded, but seasonal access, parking, and dog-leash rules can change, so check the town’s current signage before letting the dogs near the sand or tidal areas. Afterward, continue about 10 minutes to Cape Porpoise Harbor, a working fishing village with views toward Goat Island Lighthouse. Spend 45 minutes by the water, keeping the dogs close around working boats and uneven docks. There are limited food options here, so carry snacks or plan to eat later.
From Cape Porpoise, it is about a 20-minute drive inland to the Seashore Trolley Museum in Arundel. Set aside two hours to explore the historic streetcars, sheds, and wooded grounds; confirm 2027 opening hours and dog access in advance, since policies may vary by exhibit or trolley ride. Finish with an early dinner at The Clam Shack in Kennebunk, about 15 minutes away. Expect roughly $20–35 per person for classic Maine seafood, including lobster rolls, fried clams, or fish-and-chips; outdoor seating is the easiest option with two dogs. Call ahead for the May opening schedule, and keep the evening relaxed after the day’s driving.
Leave Kennebunkport around 8:00 AM and drive south on US-1 toward Kittery Premium Outlets, roughly 30–40 minutes away. This is a convenient first stop before crossing into New Hampshire: allow about 90 minutes for shopping, and check each store’s pet policy before bringing the dogs inside. The outdoor layout makes it easy to take turns shopping and walking, but bring water and waste bags; May mornings can still feel cool and breezy. Afterward, continue on I-95 S for about 15 minutes to Portsmouth, using a downtown garage such as Hanover Street Parking Garage or Foundry Place Garage rather than trying to find curb parking.
From downtown, walk or drive a few minutes to Prescott Park, where the dogs can stretch along the Piscataqua River and through the landscaped gardens. Plan about an hour here; the park is free, though special garden events may have separate fees. Keep the dogs leashed and check posted rules around planted areas. A short walk through the South End then brings you to Strawbery Banke Museum. Set aside roughly two hours for the historic houses, gardens, and lanes; outdoor dog access can vary by season and building, so confirm the 2027 policy before paying admission, typically around $25–30 for adults.
Finish with an easy 10-minute walk to Market Square, the lively heart of Portsmouth. Browse the independent shops along Congress Street and Market Street, and let the dogs enjoy the pedestrian-friendly streets while you take in the brick storefronts and historic church skyline. For dinner, settle at The Friendly Toast in Market Square—expect about $20–35 per person for generous, playful comfort food. Request patio seating if available and confirm whether the dogs may join you there; otherwise, one person can dine while the other takes them on a short waterfront walk. The planned onward drive to Lenox is about 3–3½ hours via I-95 and I-90, so staying overnight in Portsmouth and leaving early tomorrow is the more relaxed choice, especially with two dogs.
After the drive from Portsmouth, aim to reach The Mount, Edith Wharton’s Home around 11:00 AM; with a breakfast stop and dog breaks, this is a comfortable arrival after leaving around 7:00–8:00 AM. The estate usually opens in the morning, but 2027 hours and admission—often roughly $20–30 for adults—should be confirmed ahead. Allow about 90 minutes for the house and gardens. Dogs are generally best kept leashed outdoors and may not be permitted inside, so plan on taking turns if you want the full interior tour. From the estate, it is a short drive into Lenox Village, where you can spend an hour strolling along Housatonic Street and Main Street, browsing small galleries, bookshops, and locally made goods. Parking is generally easiest in the municipal lots just off the main streets.
From Lenox Village, drive about 20 minutes south to Monument Mountain Reservation in Great Barrington. Set aside roughly two hours for the hike, including pauses with the dogs; the Indian Trail climbs through forest to broad views over the Housatonic Valley, while the Squaw Peak Trail offers a shorter option if everyone is tired from the road trip. There is no reliable café or water service at the trailhead, so bring water for yourself and both dogs, waste bags, and a small towel for muddy paws. Parking can fill on pleasant May afternoons, and spring conditions may be wet or uneven—sturdy shoes and leashes are worthwhile.
Continue about 15 minutes to Stockbridge Main Street, arriving in the late afternoon when the village is especially pleasant and quieter than midday. Walk past the historic homes and independent shops, then let the dogs rest before dinner at Once Upon a Table. The restaurant is known for polished New England cooking, with entrées commonly around $30–50 per person; call ahead to confirm whether its outdoor dog-friendly seating is operating in May and reserve if possible. If outdoor seating is unavailable, ask about a takeout option and enjoy it nearby rather than leaving the dogs unattended in the car.
Leave Lenox around 7:00 AM for the long drive back to Washington, DC, allowing roughly 7½–9 hours with two dog breaks. Take I-90 East toward Albany, then I-87 South and I-287/I-95 South; morning traffic can build quickly around Albany, Westchester County, and the New York City approaches. Pack coffee and breakfast before departing, keep the dogs secured with harnesses or crates, and expect fuel and toll costs of approximately $70–110. Check live traffic before leaving—if the Hudson Valley is backed up, your navigation app may shift you onto local routes, but avoid improvising around New York during rush hour.
If traffic is moving reasonably well, stop in the Bear Mountain area of Harriman State Park for 45–60 minutes. Use a signed day-use or trailhead parking area rather than pulling onto an informal shoulder, and confirm the exact lot and trail conditions before arrival; parking fees and seasonal access can vary. A short, leashed walk is enough to let both dogs stretch without turning the return drive into a hike. Bring water, waste bags, and tick protection—the wooded Hudson Valley is beautiful in May but ticks are active, and some trails may be muddy after rain. Keep this stop flexible: it is better to shorten it than to hit the Philadelphia or Baltimore corridor at the busiest time.
Continue south on I-95 and plan a 30-minute stop at Chesapeake House Travel Plaza near North East, Maryland. It is a practical place to refuel, use the restrooms, buy a quick lunch, and give the dogs water before the final leg. Keep the dogs on short leashes in the busy parking area and never leave them in the car, even briefly; temperatures can rise quickly inside a parked vehicle. From here, traffic usually becomes less predictable around Baltimore, Washington, DC, and the Capital Beltway, so allow extra time rather than planning a precise arrival.
Rejoin I-95 South toward Washington, DC, arriving in the late afternoon or early evening if the day’s traffic cooperates. The final approach through Baltimore, Laurel, and the Beltway can add 30–90 minutes, especially on a Friday, so keep dinner plans—and any dog-walking commitment—loose. Once in the city, give the dogs a proper neighborhood walk before unpacking; if you need a final easy stretch, Rock Creek Park is convenient for many Northwest neighborhoods, though check leash rules and daylight before setting out.