Hourly ferry service between Mount Pleasant and downtown’s historic district, hourly dolphin cruises and hourly sightseeing tours. Taxi departs Mount Pleasant from Charleston Harbor Resort at the top of each hour and the Charleston Maritime Center at Aquarium Wharf 30 minutes past each hour, 9 am-8 pm. Fares are $10 day pass, $6 one-way; children under 3 welcomed aboard free of charge. Groups, pets and bikes always welcome. Adult $12 for all-day pass; children under 3 free.