The most distinctive structure is the “boat-shaped ordination hall,” which clearly differs from typical temple architecture. It reflects maritime trade and seafaring culture in its design. Built in late Ayutthaya style, the hall has a closed structure without windows to control light and heat. Inside, it is decorated with intricate stucco work and mirrored glass patterns that reflect light beautifully, creating a sacred and serene atmosphere.Enshrined inside is a replica of the Buddha’s footprint, a highly revered sacred object believed to symbolize the presence of the Buddha. The interior also features finely carved wooden elements on doors and architectural components, showcasing the craftsmanship of traditional local artisans.At the foot of the hill is the “Khao Yi San Community Museum,” a learning center dedicated to local heritage. It presents the traditional way of life of the community, including mangrove charcoal production, small-scale fishing, use of mangrove resources, and adaptation to brackish-water environments. These exhibits reflect long-standing local wisdom passed down through generations.

The museum is open only on Saturdays and Sundays to preserve its authentic community atmosphere and prevent over-commercialization. This allows visitors to experience a simple, natural, and genuine way of life still maintained by the local community.Wat Khao Yi San is therefore not only a religious site but also a living cultural space. It connects faith, local history, and coastal lifestyles in harmony, while also reflecting the long-standing relationship between humans and nature that continues to this day.