Things to Do in Costa Rica in April

Manuel Antonio is Costa Rica's smallest national park and, per square metre, its most biologically dense. April's transitional weather makes it one of the better months to visit. Morning skies are typically clear. The canopy is greening up from early rains. The post-Semana Santa crowd drop means the main trail loop does not feel like a queue. A guided walk with a licensed naturalist and a spotting scope is the difference between seeing trees and seeing the white-faced capuchin watching you from 10 m (33 ft) up, the two-toed sloth folded into a cecropia fork, or the tiny red-eyed tree frog pressed flat against a heliconia leaf. The trail from the entrance down to Playa Manuel Antonio passes through secondary and primary forest. The humid air carries the smell of decomposing leaf litter mixed with something floral and slightly sweet from the canopy orchids. April mornings here feel warm without being punishing. The beaches inside the park, framed by volcanic rock and backed by forest, empty out by late afternoon when clouds roll in. Start early. Aim for the first entry slot. You will have the first hour almost to yourself.

April in Arenal delivers what January and February cannot. Green. The volcano's perfect cone, often lost to dry-season haze earlier in the year, sharpens against skies scrubbed clean by afternoon rains. Pioneer plants colonize the 1968 lava fields along the Arenal Volcano National Park trail, flushing bright against black rock. The forest on lower slopes smells of wet earth and wild ginger after rain passes. The hot springs are the real April draw. After hiking roughly 3.2 km (2 miles) of undulating terrain over hardened volcanic rock along the old lava flow trail, you sink into mineral-rich thermal water heated by the same magma chamber that built the volcano. The contrast between warm humid air and hot spring water is less dramatic than in cooler dry months. The setting is arguably better. Surrounding tropical vegetation drips. Frogs tune up as dusk falls. La Fortuna sits at roughly 250 m (820 ft) elevation. Expect temperatures at the warm end of San Jose's average high. Morning is the window for volcano views. Clouds typically cap the summit by afternoon.

Monteverde sits at roughly 1,440 m (4,720 ft) in the Cordillera de Tilaran. April is one of the transitional months when the cloud forest earns its name with particular drama. Morning fog rolls through the canopy like slow smoke, condensing on moss-covered branches and dripping onto the trail in a steady patter that sounds like light rain even when the sky above is clear. The air smells green and mineral, nothing like the lowland heat. Temperatures hover around 18-22°C (64-72°F). You will want a light layer. April's early rains trigger a flush of epiphyte blooms, orchids and bromeliads that stud the canopy like decorations on an improbably vertical garden. Hanging bridges thread through the upper canopy. They put you at eye level with resplendent quetzals during their nesting season. April is widely considered one of the best months in the year to spot them. Males display their iridescent green tail plumes near nesting cavities. The cloud forest floor is alive with the rustle of coatis foraging in leaf litter. Listen for the three-wattled bellbird. Its metallic bonk carries for a kilometre through the mist.

Rio Celeste, inside Tenorio Volcano National Park, runs a shade of turquoise that looks digitally altered. It is not. The colour comes from a chemical reaction where two clear streams merge and suspended volcanic minerals scatter light. April's transitional rains add just enough water volume to intensify the effect without muddying it the way the heavy wet-season months can. The hike to the waterfall is roughly 6 km (3.7 miles) round trip. The trail descends through dense primary rainforest where the air is thick with moisture and the smell of rotting figs and forest floor fungi. The trail can be slippery even in the dry season. By April, muddy sections are guaranteed. Proper hiking shoes with ankle support and aggressive tread are non-negotiable. The waterfall itself drops roughly 30 m (98 ft) into a milky blue pool. Swimming at the falls is not permitted. Designated swimming areas downstream offer water that feels cool against skin still warm from the hike. River tubing on the lower stretches of the Rio Celeste, outside the national park boundary, floats you through cattle pasture and secondary forest. Toucans perch overhead. The smell of fresh-cut tropical grass drifts from the banks.

Costa Rica's Pacific coast in April delivers consistent swells friendly to beginners and satisfying for intermediates. Shoulder-season timing means you are not competing for waves with the January crowds. Playa Samara, a gently curving bay in Guanacaste, is one of the best beginner surf beaches in Central America. It has a sandy bottom, knee-to-waist-high whitewater, and warm water around 28°C (82°F) that makes a wetsuit unnecessary. The smell of salt and sunblock mixes with wood smoke from beachside restaurants grilling the morning's catch. The sand is warm enough underfoot by 7 AM. You feel it before your first paddle out. Tamarindo, further north, offers more variety. Beach breaks for learning. Point breaks for intermediates. Nearby Playa Grande for surfers who want overhead waves and fewer people. April mornings on the Pacific coast are the sweet spot. Glassy water. Offshore winds holding the face of the wave. Light that makes the green hills behind the beach glow. By afternoon the onshore wind chops things up and thunderheads start building. Get your sessions in before noon.

The Central Valley feeds Costa Rica. This agricultural belt stretches between San Jose and the slopes of Poas and Irazu volcanoes. April brings transition rains. Coffee plants burst into flower. The scent is jasmine-sweet. Most people only know roasted beans. The surprise is real. Hillside fincas outside Grecia, Atenas, and Sarchi patchwork coffee, sugarcane, citrus, and cacao across slopes that smell of turned earth and tropical fruit. Cooking experiences here connect you to Costa Rican food in ways tourist-town restaurants cannot. You will grind corn on a stone metate for handmade tortillas. You will roast cacao beans over wood fire until shells crack, releasing chocolate that carries smoke and vegetal notes. You will chop culantro coyote, the sawtooth herb that gives gallo pinto its edge. The Valley sits at 1,000-1,200 m (3,280-3,940 ft). April temperatures stay cooler than the coast. They rarely push past 26°C (79°F). Afternoon cloud cover makes outdoor cooking comfortable. Mercado Central in San Jose has operated since 1880. Visit in the morning. Food stalls overwhelm the senses. Chicharrones sizzle. Fresh cas juice cuts sharp. Vendors and shoppers hum around you.