Start with a relaxed breakfast at a popular Old Phuket Town cafe (e.g., Gallery Cafe). It’s a good spot for coffee and Thai-style breakfast before exploring the town; many cafes open from 8:00am.
Depart by longtail/speedboat for Phang Nga Bay to see James Bond Island, sea-canoe through limestone caves and visit Koh Panyee. Tours generally run 8:00am–5:00pm and include lunch and guide.
Very early pickup and light breakfast included with most Similan day-trip operators; departures commonly around 6:00am because islands are 1.5–3 hours by boat from Phuket/Khao Lak.
Visit the Similan National Park (seasonal Nov–Apr) for world-class snorkelling, white sand beaches and clear water; typical tours return late afternoon and include lunch and snorkel gear.
Join a longtail or speedboat tour that visits Maya Bay (park access regulated 7:00am–4:00pm), Pileh Lagoon, Viking Cave and snorkeling sites; tours typically include lunch and snorkel gear.
Classic longtail tour visits Poda Island, Chicken Island, the sandbar at Tup Island and Phra Nang Cave Beach — tours usually run 9:00am–4:00pm and include snorkeling stops.
Kayak through pristine lagoons, snorkel around limestone karsts and relax on white-sand beaches at Hong Island; day tours normally run 8:30am–4:30pm and include guides and lunch.
If your day is Thursday–Sunday, Krabi Town Walking Street (17:00–22:00) is worth a visit for street food and souvenirs; check local schedules as market nights vary.
Visit the Emerald Pool (open ~7:00am–5:00pm) and nearby natural hot springs for a refreshing swim; combined excursions usually depart 8:00am and return mid-afternoon.
Visit Tiger Cave Temple and, if you’re fit, climb the 1,237 steps for panoramic views (site open early morning to evening; climb recommended at cooler times).
Choose a half-day Rock Climb at Railay (intro courses available from 9:00am) or a short island cruise to revisit favourite spots; half-day activities usually run 3–4 hours.
Depart for Krabi Airport (Krabi International) or the pier for onward ferries; allow 2–3 hours for journey and check-in depending on traffic and flight/boat schedules.