Fontainebleau Hotel in Miami Beach
Photo: Fontainebleau Hotel in Miami Beach / iStock / Rauluminate

5. Book a day room, cabana, or day pass at a resort. 

If you're in a resort-style port that's less about sightseeing than sunshine and pool time, look for a hotel that offers day rooms, cabana rentals, or day passes that include access to the hotel's beach, pool, and spa facilities. Leave your bags with reception and kick back for a day of relaxation before returning home. Enjoy a leisurely lunch and take advantage of the hotel's Wi-Fi  — and the spa's showers and changing rooms — while you're there.