Yasý, Selva & Agua is a streamside campground set within the Misionera jungle, situated on Ruta Provincial 103 at km 23, beside the bridge over Arroyo Mártires Grande, in Colonia Mártires.

The site opens on weekends and public holidays and accommodates tents, motorhomes, and campers. Listed amenities include showers, parrillas, a kiosk, and tent rentals.

Beyond camping, the site offers kayaking and trekking excursions along the Arroyo Mártires — a low-difficulty, roughly 4 km paddle followed by a 2 km walk through riverside forest. Reservations require a minimum of two people and can be made by WhatsApp.