Alex and crewmate next to Maranui in dock

Alex's ship Maranui in French Pass NZ

French Pass is a narrow and treacherous stretch of water that separates D'Urville Island, at the north end of the South Island of New Zealand, from the mainland coast. It has the fastest tidal flows in New Zealand, reaching 8 knots (4 m/s). The pass is 500 metres (1,600 ft) across, but the main navigation channel (the "throat" or "narrows") contracts down to only 100 metres (330 ft) with a 20-metre (66 ft) deep shoaling region. Most of the rest of the pass is broken reef. (Courtesy of Wikipedia)

Alex's ship Maranui approaching White Island NZ

White Island or Whakaari, is an active andesite stratovolcano situated 48 km (30 mi) from the east coast of the North Island of New Zealand, in the Bay of Plenty. (Courtesy of Wikipedia)

Alex taking bearing of White Island NZ

Maranui ship registry listing