FAQ
Frequently Asked Questions
Find fast answers about exploring, fishing, and staying safe in the Trinity Inlet waterways.
Are there crocodiles in Trinity Inlet?
Yes. The inlet supports an estimated population of 25 estuarine (saltwater) crocodiles. Most are under 2 metres in length. Always follow safety signs.
Can you swim in Trinity Inlet Cairns?
No. You must never swim, wade, or stand at the water's edge. Saltwater crocodiles actively inhabit the area.
What kind of fish can you catch in Trinity Inlet?
The inlet is home to over 40 species of fish. Anglers frequently target mangrove jack and grunter, particularly around Smith's Creek.
How long is a Trinity Inlet sightseeing cruise?
A standard sightseeing cruise lasts 75 minutes. The sunset river cruise takes 90 minutes. See Tickets to compare options.
When is the best time of year to fish in Trinity Inlet?
Fishing is popular year-round. However, the dry season (May to October) offers better weather. Note the annual Barramundi closure from November to January.
Is Trinity Inlet part of the Great Barrier Reef?
The inlet itself is an estuary, not a reef. However, it acts as a critical nursery for up to 75% of Great Barrier Reef fish species.
What are the rules for fishing in Trinity Inlet?
You must observe the annual East Coast Barramundi closure from November 1 to January 31. Targeting them even for catch-and-release is illegal during this time. Do not clean fish near boat ramps.
Who are the traditional owners of Trinity Inlet?
The inlet is bordered to the east by the traditional lands of the Mandingalbay Yidinji people. The local name for the area is Gimuy.
What is the best way to explore Trinity Inlet?
Taking a guided boat tour from the Marlin Marina is the easiest method. See our Getting There guide for directions to departure points.
Do I need a boat license to hire a boat in Cairns?
No marine license is required for basic pontoon or dinghy hires. You must stay within designated navigational boundaries. Check Boat Hire Rules for more details.