Dive into Tasmania's sea caves
EXPLORE CAVES, TUNNELS & CANYONS
Explore caves, tunnels and canyons
The Tasman Peninsula is home to spectacular sea caves, tunnels and canyons, shaped by thousands of years of waves and weather.
From the dramatic passages of Cathedral Cave to open-air canyons filled with marine life, these dives offer a unique way to explore Tasmania’s coastline beneath the surface.
A dive that rewards good buoyancy
These sites are best explored slowly. Good buoyancy allows you to move comfortably through narrow passages, swim close to the rock formations and appreciate the changing light as you move between open water and sheltered sections.
Depending on the site and conditions, the dive can range from open canyons to more enclosed passages, giving each dive its own character.
DEPTH
Varies by dive site
DIVE TYPE
Caves, arches & canyons
LEVEL
Good buoyancy required
A world of colour beneath the surface
The walls and sheltered spaces of these sites are home to an extraordinary diversity of marine invertebrates.
Sponges, soft corals, sea squirts, anemones and other colourful organisms cover the rock, creating intricate underwater communities that are easy to overlook while exploring the caves and canyons.
Slow down and look closely, the smallest details can be some of the most spectacular parts of the dive.
Discover Tasmania’s underwater caves and canyons