Read the water
Visibility, wind, tide, surf, current, and risk form one current outlook.

35 Oʻahu Reefs · Lifetime Unlock
Hanauma, Shark's Cove, Electric Beach, and 32 more — live outlooks, Habitat Lens wildlife, readiness scoring, and reef cards on every stop.
Thirty-five reef guides · Conditions meet habitat
Each reef guide combines the live water outlook with entry geometry, skill fit, habitat, likely wildlife, protection rules, and a readiness decision grounded in the exact site.
Compare all 35 reef guides↓
Visibility, wind, tide, surf, current, and risk form one current outlook.
Reef Lens and Habitat Lens explain structure, species, and responsible viewing.
Readiness connects conditions and ability before navigation or a Fitness-connected swim.
Reef Intelligence
WeatherKit-powered conditions, Reef Lens mechanics, Habitat Lens wildlife, readiness scoring, safety signals, and cinematic reef cards work together as one water-day decision system.


Open live ocean outlooks, tide, wind, and visibility decks, Habitat Lens wildlife guides, readiness scoring, and Apple Fitness open-water workout tools on every stop.
Capabilities
Every layer is designed around the way this day actually unfolds on Oʻahu.
35 curated reefs with cinematic photography
Live visibility, water, wind, tide, and hazard outlooks
WeatherKit live deck with surf report, visibility range, and risk call
Reef Lens — region, tier, skill, protection rules, and ocean mechanics
Habitat Lens wildlife galleries and species context
Readiness scoring and Apple Fitness snorkel workouts
Reef Guide · 35 curated sites
Open a site to connect live visibility, water temperature, wind, tide, surf, risk, entry and exit geometry, skill fit, reef-protection rules, habitat, likely sea life, galleries, navigation, and Apple Fitness—then decide whether this is the right water window for you.

Understand region, reef type, entry and exit, ocean mechanics, skill fit, protection rules, and current risk.
Explore species spotlights, wildlife galleries, reef ecology, seasonal context, and respectful viewing guidance.
Combine visibility, tide, wind, drift, surf, entry safety, and experience fit into one readable decision layer.
Move from planning to an Apple Fitness and Health-connected snorkel workout when conditions and ability align.
Inside the experience
The product keeps the data, the story, and the place in the same frame.

See the lava fingers, protected pockets, and entry geometry before the swim.

Fish density and habitat character stay connected to the exact reef.

Learn where honu may pass and how to give them space—without a promised sighting.

Channel shape and habitat cues explain where rays may travel.

Species spotlights help you know what to notice without promising a sighting.

Wildlife context remains connected to the exact reef location.

Cinematic reef imagery helps each site feel specific before you arrive.

Conditions, skill, entry context, and the day's plan meet in one readiness view.
Everything inside
A focused system with the depth to support the whole experience.
35 curated reefs with cinematic photography
Live visibility, water, wind, tide, and hazard outlooks
WeatherKit live deck with surf report, visibility range, and risk call
Reef detail cards with live snorkel warnings and navigation modules
Habitat Lens wildlife galleries and species context
Readiness scoring and Apple Fitness snorkel workouts
Continue exploring · 01
Oʻahu Activity Atlas