Silfra Hall

Second section on the route. The fissure widens here. A cave system drops well below the 18m recreational cap and is off-limits on guided tours.

Depth

5–18m

Current

Mild

Diver level

Open water

Entry

Boat

Unique features

  • Opens out from Big Crack; the section where the colour of the rock and the clarity are most obvious
  • Leads into a deep cave system that recreational tours do not enter

Sources & last checked

Checked July 2026

This is a researched draft, not yet human-verified. The seasonality and logistics are drawn from the sources below — confirm specifics (permits, fees, closures) with an operator before you book.

Note on the data: Coordinates are approximate; not surveyed dive-site GPS.