Foresta Wellness Boutique Gym & Spa

Foresta Wellness Boutique Gym & Spa is an adults-only wellness spa at P.º de Miramón, 162, in San Sebastián’s Miramón area. Set alongside the forested surroundings of the district, the venue has a quiet, nature-led character focused on slowing down, restoring balance and giving guests space away from the pace of the city. It forms part of a hotel setting, while the Foresta experience is centred on spa facilities and treatments rather than dining.

The water circuit is the core of the visit. It combines a 15°C contrast pool, a 34°C hydrotherapy pool with different massage effects and a 38°C magnesium bath using Epsom salts and hydromassage. The sequence is designed around changing temperatures and sensations, with the mineral bath providing a warmer stage for physical relaxation. The spa also includes a thermal area with a traditional Finnish sauna, a steam bath and an infrared sauna with full-spectrum LED light. The steam room incorporates eucalyptus and menthol aromatherapy.

A relaxation area overlooking the surrounding natural park extends the experience beyond the water and heat facilities. It includes a purified, hydrogenated water fountain and space for quiet rest or meditation. The atmosphere is therefore suited to adults looking for a calm wellness break, a structured hydrotherapy session or time dedicated to recovery and personal care.

Treatments follow the same botanical and nature-inspired approach. Body treatments combine massage and aromatherapy, with different techniques and intensities intended to ease physical and mental tension. Rituals pair botanical oils or elixirs with energy-based therapies, while facial treatments focus on botanical skincare and established treatment techniques. The menu is designed to cover shorter treatment appointments as well as more immersive spa rituals.

Foresta works well for adults seeking a contained, peaceful spa experience in San Sebastián, including visitors combining the city with a wider Basque Country itinerary from Biarritz. Its setting in Miramón gives it a quieter feel than a central urban wellness venue, while its water, sauna and treatment programme allows a visit to be shaped around either facilities or a booked therapy. Reservations are appropriate for the spa circuit and treatments, particularly when a specific time or ritual is required.