Whenever we are in town, we always take the Charleston Water Taxi. It is the best deal in town to just tour the water. $14 for the all day pass! You can get on and off at any of the 4 stops for as long as you want all day. Crew are always great. And yes, we saw dolphins (we always do). Had one swim right under the boat (captain cut the engine, of course). As soon as we got off at Harbor Resort, we saw more feeding along the dock and the crew told us how they love to feed along there.