Sea kayaks are available for rent at the Sea Breeze Inn (tel. 504/445-4026), for US$7 an hour for a double. Half-day rentals cost US$18, and full-day rentals cost US$21. Note: Visitors should take good care when paddling out into the open water on sea kayaks. Choppy waters and ocean winds can quickly get the better of inexperienced kayakers. If in any doubt at all, stick close to shore and be absolutely sure you have enough energy not only to get out, but to get back, too.
Glass-bottomed boat tours (US$30 for an hour) leave from a dock on the southern half of town—look for the sign, and double-check on the schedule, as it varies with the seasons. Trips are also available from West Bay Beach, a quick water taxi ride away.
Half Moon Bay has a pretty beach, perfect for a relaxing afternoon. Those looking for a spectacular Caribbean beach should catch a water taxi over to West Bay  for its seemingly endless stretch of powdery white sand (US$2.50 for the 10-minute ride).
Fishing trips can be arranged with a number of local fishermen; one to try is Eddie and Donna’s Fishing Charters (tel. 504/9653-1293) on the beach just after the road ends at the southern end of town. Six-hour trips on a boat that can take 6–10 guests run US$350, while a trip on a fiberglass lancha is US$150 and can include a tour through the mangroves. Be sure to bring lots of sunscreen for either excursion, as well as your snorkel gear. They also provide water taxi service to West Bay.
Just east of West End  on the road to Coxen Hole , walkable if you watch out for traffic, is the Butterfly Garden and Bird Park (tel. 504/445-4481, www.roatanbutterfly.com , 9 a.m.–5 p.m. Sun.–Fri., US$7), with a collection of 18 or so butterfly species as well as a few toucans, parrots, and macaws. It’s a modest little collection, but a break from all the water-oriented recreations if you’re in the mood for something different.
There are a couple of canopy tours available just outside of town, on the road to West Bay.