Aventuras Naturales
Based in Antigua. Jungle treks, archaeology, nature, Maya culture, birdwatching, mountain bike tours.
Turismo Ek Chuah
Ecotourism agency offering tours including trekking, mountaining biking and horse riding with guides. [English/Spanish/French]
Unicornio Azul
Trips and expeditions on horseback in the breathtaking Cuchumatanes mountains of Guatemala, with focus on environmentally responsible travel. [English/French/Spanish]