Taiwan · southwest Green Island

Steel Reef

Also known as: Gangtie Jiao

Best time to dive

April to October

What you might see

  • Hammerhead sharkLikely

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Advanced Open Water - advanced conditions (currents/depth); dive within your training.

Snorkelling

Not a snorkel site - no - boat dive to a submerged structure, not snorkel-accessible

Safety notes

current exposure at an open offshore site, depth approaching 30m, metal/encrusted structure edges, boat traffic at the exit point

Permits & fees

no specific government diving permit fee identified for this site; general East Coast National Scenic Area rules apply (no touching/collecting marine life); fee amount -

Permits and operators change - confirm before booking.

Location

Nearest hub: Green Island

This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.