Anchored by a square indoor pool, this biophilic home gym sits beneath a broad glass skylight that floods the space with natural light. Charcoal slate pavers frame the water as tree ferns soften edges. An emerald zellige wall contrasts warm lime-plaster and blackened timber slats, while river stones and low teak benches add texture. Discreet sconces and coiled battle ropes pair spa serenity with training function.