Vietnam · Hon Mun area
Madonna Rock
Also known as: Hon Rua
Best time to dive
April to August; January to October; December to February
Certification & difficulty
Technical - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - no - cave/swim-through features suited to scuba only
Safety notes
overhead environment in caves/swim-throughs requires buoyancy control; monsoon-season swell/reduced viz Dec-Feb
Permits & fees
Hon Mun Marine Protected Area fee applies for diving in the MPA (fee not independently confirmed)
Permits and operators change - confirm before booking.
Location
Nearest hub: Nha Trang
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.