Start the day with a quick breakfast near downtown Boise before getting on the road and heading south on I-84 toward the first major stretch of the drive. As you leave the city behind, the route opens into the high desert and river valley scenery of southern Idaho, making it a smooth, scenic beginning to a long travel day.
By afternoon, keep the drive moving through southern Idaho and consider a brief break in Twin Falls to stretch your legs at the Snake River Canyon area, where the wide-open views offer a welcome change of pace from the highway. If you want a practical stop before continuing south, grab a quick meal near Twin Falls or Pocatello and use the pause to reset for the longer push toward Nevada and California.
As evening approaches, aim to finish the day's driving with an overnight stop in Elko, Nevada, where you can check into a comfortable hotel and unwind after the long push south. If you still have energy, take a short drive to the Elko Historic District for a relaxed dinner and a quiet stroll before turning in, giving you a simple and practical end to the first leg of the road trip.
Finish the final stretch of the road trip by heading into San Diego and checking in to your hotel so you can drop your bags and relax after two days on the road. If you arrive with time to spare, ease into the morning with a simple drive along Harbor Drive and the waterfront near Embarcadero Marina Park, where the bay views make for a calm transition from highway miles to coastal arrival.
Once you've settled in, keep the pace easy with an afternoon drive through Balboa Park, where the gardens, Spanish Revival architecture, and open plazas offer a relaxing first taste of San Diego beyond the highway. If you want a low-key way to unwind after the long trip, head toward Little Italy for a casual lunch or coffee before returning to the hotel, giving you a smooth transition into the evening and a chance to enjoy the city at a comfortable pace.
Wrap up the trip with a relaxed evening check-in and take time to fully settle into your hotel after the long drive from Boise. If you're up for one last easy outing, head to Seaport Village for a casual waterfront walk and dinner with harbor views, then return to the hotel for a quiet night and a well-earned rest.