Hol Chan Marine Reserve and Shark Ray Alley
A cut in the barrier reef just south of Ambergris Caye, protected since 1987, with coral, turtles and fish in shallow water, and a nearby sandbar where nurse sharks and stingrays gather round the boats. Trips run from San Pedro; wear a rash vest rather than ordinary sunscreen.
The Great Blue Hole
A deep, circular sinkhole in the Lighthouse Reef atoll, a long boat ride from the cayes. The dive goes deep and suits experienced divers only; everyone else sees its famous shape best from a scenic flight.
Actun Tunichil Muknal (the ATM cave)
A day of wading, swimming and scrambling through a river cave to chambers where the Maya left pottery and human remains more than a thousand years ago. Cameras are banned, a licensed guide is compulsory, and you need to be happy swimming in cool water in the dark.
Xunantunich
A Maya city on a ridge above the Mopan River, reached by a hand-cranked ferry. Climb El Castillo for views into Guatemala, and arrive at opening, ahead of the heat and the tour buses.
Lamanai by river boat
A boat trip up the New River, watching for crocodiles, birds and howler monkeys, leads to a Maya city in the forest with a temple faced by giant stone masks. It makes a long day from the cayes or Belize City.
Cockscomb Basin Wildlife Sanctuary
A forest reserve set up to protect jaguars, with trails to waterfalls and river pools. The cats are rarely seen, so come for the forest, the birds and a swim rather than a sighting, and bring insect repellent.
The Belize Zoo
A small zoo of native animals, most of them rescued or orphaned, with jaguars, tapirs and harpy eagles in forest enclosures. It sits beside the road west from the airport, so it breaks the journey inland, and it is the one place a jaguar sighting is certain.
Cave tubing
Float on an inner tube through a chain of river caves in the Caves Branch area, with head torches picking out the rock. It is gentle enough for children but fills with cruise passengers on ship days, so we check the cruise calendar and pick a quieter one.
Mountain Pine Ridge
Pine-covered uplands south of San Ignacio, surprisingly cool, with waterfalls and granite river pools for swimming, such as Rio On and Big Rock Falls. The roads are rough and unpaved, so go with a driver in a 4x4.