Things to Do in Belmopan in March

March's minimal rainfall drops the Caves Branch River to its calmest, most navigable state. This changes everything. You float through limestone caverns on an inflated inner tube. Your headlamp cuts through absolute darkness. The river's echo bounces off dripping stalactites overhead. The water runs cool enough to shock after 31°C (88°F) air outside. No wetsuit needed. The 45-minute jungle hike to the cave entrance is half the draw. Howler monkeys growl from above the canopy. The trail crosses the river twice. The smell of damp earth and decaying leaves is thick. March's lower water means slower current. More time inside the caverns. This is the superior experience. Go in the morning. By afternoon, humidity turns the approach hike into endurance.

Xunantunich sits on a limestone ridge above the Mopan River about 80 km (50 miles) west of Belmopan. Reaching it starts with a hand-cranked ferry across the river at San Jose Succotz. The crossing takes two minutes. It feels like stepping backward through a century. The main pyramid, El Castillo, rises 40 m (130 ft) from the cleared jungle floor. In March's dry air, the view from the top stretches unbroken into Guatemala. The stucco frieze on the eastern face depicts astronomical bands of sun, moon, and Venus. It is among the best-preserved Maya architectural art still in situ. March heat makes the exposed plaza feel like a kiln from 11am to 3pm. Arrive before 9am. Or after 3:30pm. On a weekday morning in March, you might share El Castillo with a handful of visitors and a pair of orange-breasted falcons. The birds nest on the upper temple walls. Their calls cut through the warm stillness.

The ATM Cave is Belize's most extraordinary archaeological site. March is arguably the best month to attempt it. The approach hike takes about 45 minutes through dense jungle in the Tapir Mountain Nature Reserve. You cross the river three times. Depths stay manageable in dry season. They become impassable after heavy rains. Inside, the cave stretches over 5 km (3.1 miles) into the mountain. The final chamber holds intact Maya ceramics, obsidian blades, and calcified human remains undisturbed for over a millennium. You swim, scramble over slick limestone ledges, and haul yourself through narrow passages in near-darkness to reach them. Cameras have been banned since 2012. A visitor dropped one on a skull. What you see stays only in memory. The water temperature inside holds at about 22°C (72°F) year-round. This is genuine relief after the humid hike in. March's average of 48 mm (1.9 inches) of rainfall gives you the most reliable access window of any month.

Tikal is technically in Guatemala. But from Belmopan it is a feasible and staggering day trip: roughly three hours each way via the Western Highway and the border crossing at Benque Viejo del Carmen. The drive through the Peten lowland jungle is part of the experience, with ceiba trees towering 45 m (150 ft) above the road and the humid green smell of tropical forest pouring through the windows. March's dry season means the causeways connecting Tikal's temple complexes are firm underfoot rather than the ankle-sucking mud of the wet months. Temple IV, the tallest pre-Columbian structure in the Americas at 65 m (213 ft), has a view over unbroken jungle canopy that extends to the horizon in every direction. Even travelers who have climbed Xunantunich will find that Tikal operates on a completely different scale: the Great Plaza alone is larger than most entire Maya sites. The dry heat in the Peten pushes even higher than Belmopan, so carry more water than you think necessary.

The Hummingbird Highway running south from Belmopan toward Dangriga is one of the most scenic drives in Central America, and March is the month to do it. The 80 km (50 miles) of narrow road winds through karst hills studded with cave openings, past citrus groves heavy with the sharp scent of ripening grapefruit, and through jungle dense enough to dim the midday sun. The road is in its best condition during the dry season, and the inland cenote at St. Herman's Blue Hole National Park, about 19 km (12 miles) south of Belmopan, is swimmable and startlingly blue in March's clear light. The water drops to about 24°C (75°F), cold enough to make you gasp after the humid air above. Further along, Five Blues Lake shifts color depending on the angle of sunlight and mineral content, a phenomenon that is strange to witness. The drive works as a half-day or full-day excursion depending on how many stops you make, and renting a vehicle or arranging a private driver lets you pull over where the tour buses cannot.