Two parallel trenches (Hugo's and False Trench) with sheer walls, swim-through gaps and nudibranchs; grey nurse sharks in winter, shelter when current runs.
Visibility at Julian Rocks, Hugo's Trench
Visibility at Julian Rocks, Hugo's Trench typically ranges from 5 to 20 metres, though it shifts with swell, wind and recent rainfall. Year-round; June-August peak for grey nurse sharks; sheltered from the strong northerlies of September-December generally offers the best conditions for diving here.
Right now: approximately 4 m, 98% confidence (updated 23:39 AEDT).
View the live forecast and 7-day outlook for Julian Rocks, Hugo's Trench →
Region: Byron Bay, NSW
Skill Level: Beginner
Depth: 8-17 m
Water Temperature: 17-26 °C
Visibility: 5-20 m (average about 8 m)
Best Time to Dive: Year-round; June-August peak for grey nurse sharks; sheltered from the strong northerlies of September-December
Marine Life: Nudibranchs, grey nurse sharks (winter), wobbegongs, turtles, kingfish, bull rays, eagle rays, schools of fish, occasional manta rays
Hazards: Open-ocean swell, surge and current (the trench is a refuge when current runs); swim-through gaps only attempted in perfect conditions; surf launch
Facilities: Boat dive only; sanctuary zone and grey nurse shark critical habitat (code of conduct applies, no night dives)