I agree with Dave. We also just arrived in New Zealand
, after spending 6 months in the South Pacific
. While both Bora Bora
and Fatu Hiva (Marquesas) had depths approaching/ exceeding 100 ft, most anchorages
were in the 15-30 foot range. 275' of primary chain is adequate. We carry 300', and a Delta 88. Never dragged, even in an un-announced 50 knots in Tonga
, while short-scoped (70 ft out in 20 ft of water
due to swing-room). Carrying additional rode
, usually a few hundred feet of large-diameter 3-strand, is the norm here. It can easily serve as your stern-anchor rode
Items I would rate higher than more chain (more than the 275' you already have):
1)A bullet-proof snubber system, with a back-up, that you can pay-out under load. These are CRITICAL to a good anchoring
technique. Have a spare rigged and in place, and allow yourself lots of spare snubber-rode that you can pay out if you need to lay out more chain in the middle of the night. DO NOT FORGET chafe protection for the snubbers. Firehose is excellent.
2) An anchor more than suitable for your boat. "Good enough" isn't. When the merde hits the fan, and you are dragging in 40 knots, in a big chop, at 2:00 am, with driving rain and a lee shore looming, you will quickly get religion, and wish you had spent a few extra bucks on the right gear
. Do it once, do it right.
3) The gear
, and knowhow, to quicky add to you scope
, deploy a second anchor, etc. In other words, plan your back-up and tertiary contingincies NOW, and make sure everyhthing will work in the heat of battle. Do the shackles fit the anchor shank? Can you quickly mate your back-up rode to the primary chain? Do you even have back-up rode??
Remember, these ideallic places can turn unforgiving... there is often no one around to help (or too busy taking care of their own situation), and sourcing ANYTHING there is next to impossible. Get the stuff you will need before you leave, while you have time, $, and a West Marine
Good luck, and enjoy the process.