CORE by CHAKfitness

CORE by CHAKfitness is an outdoor gym on Avenida Central in Tamarindo, about 50 meters south of the police station. It is run by CHAKfitness, which also works in Las Catalinas.

The gym is built with natural materials such as wooden frames, logs and stone-weighted pulley machines, and most of the training area is in the open air. It offers open gym access, group classes, personal training, kids’ classes and fitness retreats. The weekly schedule includes boot camp, Pump, TRX, BOSU, circuit training, Animal Flow, aerial Pilates (by reservation), yoga, and MMA and self-defense. Kids’ sessions such as Ninja Kids and Core Kids run in the afternoon.

The website lists a daily pass at $20, a weekly pass at $75 and a monthly pass at $85, plus class packs and private sessions. Website hours are 7 a.m. to 7 p.m. Monday to Thursday, 7 a.m. to noon on Friday and Saturday, and 8 a.m. to noon on Sunday.

CORE is consistently well reviewed. Visitors and residents describe the jungle-style equipment as unusual and challenging, and praise the knowledgeable, welcoming owner and staff. Reviewers say classes are run in English and Spanish as needed. One reviewer noted that there was little shade in early 2026.