GKS is a kitesurf club based in Esposende, northern Portugal, dedicated to making the sport accessible to people of different ages and experience levels. The club offers private kitesurf lessons for beginners through advanced riders, with instruction adapted to each student. Lessons include equipment, boat transfers to the beach, rescue-boat support, hot showers and parking. Independent kitesurfers can rent equipment or use support and surveillance services, including rescue-boat coverage and storage on selected passes.

GKS also provides stand-up paddleboarding lessons and rentals in the Cávado River Estuary, with boards and buoyancy vests supplied. Its guest house is in central Esposende, close to the area’s river lagoon and ocean beaches, offering access to both flat water and waves. For windless days, the club organizes activities such as tandem paragliding, wakeboarding, trekking in Peneda-Gerês National Park, climbing and SUP tours on the Neiva River. GKS is registered with Turismo de Portugal and affiliated with the International Kiteboarding Organization.