About GlassySea
An independent marine data aggregator and beach condition tracker designed to find calm, swim-friendly coastal waters worldwide.
Why we built it
Most marine apps are made for advanced surfers chasing big waves. GlassySea looks at the ocean from the opposite perspective: it processes open marine swell models, wind direction, and tidal patterns to highlight naturally sheltered bays and flat, glassy water conditions for swimmers, snorkelers, paddleboarders, and families.
How it works
Every micro-location across our featured destinations is evaluated in real time. We combine live offshore swell and wind forecasts with each cove's geographical orientation, offshore reef barriers, and natural cliff shelter. The result is an objective, modeled calmness score updated continuously throughout the day.
Estimates, not guarantees
GlassySea provides data-driven estimates and predictive models, not safety guarantees. Coastal conditions can shift rapidly — always assess the water in person and strictly follow local lifeguards and beach safety flags.
Feedback welcome
Spotted a score that doesn't match what you saw on the beach? We'd love to hear from you.
Contact us