Darwin Arias gives a surfing lesson the beach in La Barra, Colombia, June 22, 2024. La Barra, where the whale festival is being held this year, has mostly mom-and-pop restaurants, surfboard rental shacks and wood-plank hostels like Casa Majagua, where private rooms start at 40,000 Colombian pesos, or about $10, a night. (Jaír Coll/The New York Times)