Ed Robinson, a widely published underwater photographer, offers specialized charters for small groups aboard the Sea Spirit. Two-tank dives are $145 ($168 with all the gear); more experienced divers will want to book the two-tank adventure dive (Sun and Fri; same price) or an all-day, three-tank adventure dive offered on Tuesdays ($190, $213 with gear). The check-in for the dive is at 165 Halekuai St. in Kihei, while the boat departs from the Kihei Boat Ramp, 2988 S. Kihei Rd., just south of Kamaole Beach Park 3.