Grant's Lagoon is a small, protected coastal lagoon tucked behind the dunes at Binalong Bay on Tasmania's Bay of Fires coast. Its calm, shallow, clear waters are sheltered from open-ocean swell by a sandbar, creating an ideal natural pool for beginner snorkelers. The lagoon sits within an area famed for its orange-hued granite boulders and crystal-clear waters, offering excellent visibility over sandy-bottomed shallows punctuated by scattered rocky reefs. Snorkelers can explore seagrass beds and sand patches in the relatively warm summer months, with easy shore access directly from the beach within the Bay of Fires Conservation Area.
Grant's Lagoon
BeginnerMAYBE
MAYBE
Fair. Experienced snorkellers only.
Showing last known conditions
Wave Height 0.0 mSwell Period 0.0 sWind Speed 1.4 knPrecipitation 3.9 mmTidal Phase slack
Last evaluated
The spot
Community-maintained
Community contribution: submitted by Daniel
Know before you go
Logged by the community, confirmed by mods
Low risk: Tidal current at sandbar mouth
The lagoon's connection to the ocean can create tidal currents around the sandbar opening, especially on an outgoing tide.
Low risk: Cold water temperatures
Water temperatures can drop significantly (10-16 °C), increasing the risk of cold-water shock even in summer.
Low risk: Reduced visibility from stirred sediment
Sand and sediment can be stirred up by wind or swell, temporarily reducing visibility in the shallow lagoon.
Wildlife Guide
No wildlife notes for this spot yet.
Gallery
Be the first to share a photo
No photos yet — yours could be the first.
Photos are reviewed by moderators before they appear.
Getting in
Shore entry
Entry
From Binalong Bay, follow Binalong Bay Road (C850) approximately 8 km to the turn-off for Grants Lagoon. The campground and day-use area are well-signposted, with direct beach access to the lagoon.
Parking & facilities
Day-use parking area available near the campground, with spaces suitable for cars and campervans.
parkingtoiletspicnic_tables
No fees for day-use or beach access.
Spot Map
Community
Trust
Is this spot real, accurate, still loved?
Spots near Tasmania
No nearby spots yet.
Needs verification
Quick verify
One tap helps the community keep this spot honest.
About this data
- Conditions last evaluated
- Spot data last updated
- Data sources
- Open-Meteo (marine & weather conditions), tide predictions via UTide, community contributors (descriptions, hazards, marine life).
- License
- Spot content licensed under CC BY-SA 4.0. How's the Spot is open source.
Weather & swell ┬╖ Open-Meteo marine & weather APIs Tides ┬╖ UTide harmonic analysis Sea & safety ┬╖ community reports