Caldera

Caldera is expansive by nature crafted for shared moments, spacious comfort, and deep connection. With room for up to ten bathers, it offers an open, grounded setting where friends, families, or guests can settle in, stretch out, and soak in stillness together.

Its wide circular form and tiered spiral seating create a generous environment for communal immersion, whether used for restorative hot soaks or revitalizing cold plunges. Ideal for large retreats, wellness spaces, or private sanctuaries, Caldera is both nurturing and grand. A spacious ritual-shaped in wood, warmed by water, and held in presence.

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Experience

The Caldera experience is one of spacious connection, an invitation to come together, slow down, and share in the elemental ritual of water. With its generous scale and circular design, Caldera creates a natural gathering place, where presence replaces distraction and silence carries just as much meaning as conversation. Whether it’s a restorative soak among retreat guests, an evening ritual with family, or a quiet morning plunge with friends, Caldera offers space to be both together and at ease.

Handcrafted from thermally treated hardwood and secured with custom stainless steel bands, every detail of Caldera is designed for durability, warmth, and natural elegance. Its deep water and spiral stone seating encourage full-body immersion while maintaining comfort for all.

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Specifications

Bathing

• ‍Capacity: Up to 10 ‍
• Posture: Upright Seating‍
• Soaking Style: Deep water for many friends, members, and guests to share and sit on our 3 tiered spiral stone seats.

Temperature

• Water: From cold plunge (44°F) to hot soak (104°F) 
• Outdoor Ambient: Four-season resilience (0°F to 100°F)

Measurements

• Dimensions: 8'2" diameter x 4' height
• Volume: ~1200 gallons
• Dry Weight: 1200 lbs
• Filled Weight: 13,000 lbs
• Foundation Capacity: 7.5 tons min

Materials

• Solid wood tub, inside and out. A traditionally coopered barrel construction with precision-milled staves and head
• Built from naturally durable thermally modified hemlock hardwood, chosen for beauty, vertical grain, and longevity
• Metal components are fabricated from sanitary grade brushed stainless steel

Water Filtration System

• The Nordsprings Mineral Enrichment Core: our integrated proprietary system for all filtration, sanitation, heating and cooling
• Supports three operating modes:
  
  • Recirculatory Filtration (multi stage closed-loop, low-chemical)
  • Flow-Through (natural spring water fed, continuous turnover)
  • Fill-and-Drain (session-based use)Mineral
• Essence pre-dosed subscription (magnesium, calcium, +80 trace minerals)