Coming from the entrance of Tank Cave, this is the point at which the tunnels split. The A Tunnel leads off to the left and the C Tunnel continues straight ahead.
Tank Cave - F Tunnel
Deep in the bowels of Australia's Tank Cave is a beautiful long straight tunnel called F Tunnel, stretching for a couple of hundred metres.
Tank Cave - C Tunnel
As tunnels fan out from the Tank Cave entrance they are named off by letter: A, B, C, D etc.
Tank Cave at D2
This floor to ceiling feature leftover from when water eroded out the passages of the cave that cave divers now swim through is a favourite of mine.
Tank Cave ice chamber
Local cave divers will know this room in Australia's Tank Cave by the inspirational name "90 Metre Room". I like to think of it as an ice chamber with a molten ceiling. It definitely feels icy on a smoking hot Australian summer's day!
Remembering the summer of stingrays
Every summer short-tailed stingrays gather at the Poor Knights Islands Marine Reserve off the Tutukaka Coast of northern New Zealand. Last summer, January 2018, was a one in 15 years event.
Common anemone - Anthothoe albocincta
As the name implies, the common anemone is abundant in New Zealand.