Pyramid Butterflyfish confirmed 5 months ago

Entrance Bommie

Osprey Reef · Australia

The Entrance Bommie sits at the southern pass where oceanic currents funnel into the Osprey lagoon, creating a nutrient-rich upwelling that attracts large pelagics including the atoll's most celebrated visitor: the oceanic whitetip shark. These open-ocean predators are rare at most reef dive sites but appear with reliable regularity at this site, drawn by the fish aggregations that thrive in the current channel. The bommie itself is a coral-encrusted pinnacle rising from 30 metres that provides a focus point for fish life and a reference for divers managing the frequently strong current.

Conditions

Depth

10 to 40 m

Advanced depths

Current

Often strong

Can pick up on the edge

Visibility

30 to 50 m

Clearest in the calm season

Water

23 to 30°C

5mm wetsuit

Month by month

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Water (°C)	27	27	27	26	25	23	23	23	23	24	25	26
Vis (m)	20	20	25	25	30	30	30	30	30	30	25	20
Current	Strong	Strong	Moderate	Moderate	Moderate	Strong	Strong	Strong	Strong	Moderate	Moderate	Strong