Explore the Irazu and Turrialba Volcanoes of Cartago Valley Explore the stunning landscapes of Irazu and Turrialba Volcanoes on a guided tour with local experts in Cartago Valley. Rio Sierpe Mangrove Tour Explore the Rio Sierpe mangroves in Costa Rica and discover its wildlife with Osa Rural Tours Cooperative. Experience Ngöbe Indigenous Culture Immerse in the traditional Ngöbe culture with a visit to the Alta Laguna de Osa Indigenous Territory in Gran Chiriquí.