Leaving the boat behind for a full day ashore, whether that's a long tramp through the hills, a bike ride into town, or an overnight stay on the beach, puts a very different kind of demand on your anchoring setup than a quick swim stop does. Anchoring for a proper shore trip is about trust: trust in what you've dropped, what it's resting on, and whether it will still be there when you come back down the track.
Even seasoned sailors have been caught out. Riley and Elayna from La Vagabonde famously had to abandon a shore trip mid-mountain when their catamaran started dragging and drifting toward open water. It's the kind of experience that concentrates the mind, and it's far from unusual. The question their story raises is a practical one: what kind of anchoring setup actually lets you walk away and stay away?
This piece isn't about technique or tricks for setting and forgetting. The focus here is the physical gear itself, specifically anchors, and the critical matter of matching them to the seabed beneath you.
*What kind of anchoring are you actually doing?*
Dropping the pick for a snorkel or a quick lunch is a different proposition entirely from heading off for four hours on a hiking trail. With a short stop, you can keep half an eye on the boat. With a proper shore trip, you can't, and that changes everything about how seriously you need to take the setup.
Security starts with gear that suits both your boat and the bottom you're anchoring to. That's not simply a matter of buying the priciest anchor on the shelf. It's about assembling a system where anchor, chain, and rode work together under load, absorb shock, and reset reliably when the wind shifts or the tide turns.
*What lies below: seabed and anchor types*
The seabed matters just as much as the anchor itself. An anchor that performs brilliantly in sand can be useless in kelp or bare rock, and if the two don't match, even flawless technique won't keep you in place.
No anchor is truly ideal for bare rock, but Bruce and Claw-style anchors have a reputation for finding purchase in cracks and contours. In high-risk rocky terrain, a trip line or a grapnel anchor as a backup is worth considering.
One important sizing note: the right anchor for a 30-foot monohull won't necessarily suit a multihull or a high-windage displacement cruiser. Boat type, windage, and your typical cruising grounds all need to factor into the decision. A 40-foot catamaran may need an anchor rated for a 60-foot monohull, because gust loads and swing radius are considerably greater. The seabed guides published by individual anchor brands are a useful starting point for getting the sizing right for your specific boat.
*Chain and rode: the part people underinvest in*
A well-chosen anchor paired with the wrong chain and rode is a system waiting to fail. Yet this is exactly where many cruisers cut corners.
All-chain rodes create catenary, the natural sag in the line that dampens movement and helps keep the anchor lying flat on the bottom. For boats over 10 tonnes, all-chain setups are generally preferred, particularly in anchorages with swell or gusty conditions. Rope-chain combinations are lighter and more manageable without a windlass, but they rely heavily on a good snubber and careful attention to chafe points.
On chain grade and sizing, proof coil or high-test G43 chain suits most recreational applications. G70 offers higher strength but is more than most cruisers need, and mismatched G70 can damage gypsies on windlasses not rated for it. As a practical example from the Lewmar and Maxwell Anchoring Guides (2023): a 12mm G30 chain works adequately for a 12-tonne cruiser, but switching to G43 allows you to drop to 10mm for comparable strength with a useful saving in weight.
For snubbers, a length of nylon rope with genuine elasticity is what you want, attached to a solid cleat rather than the windlass itself. A three-strand nylon snubber running three to five metres suits most boats well. Heavier vessels may benefit from twin snubbers to spread the load.
*Leaving the boat and actually staying gone*
Building confidence to walk away from the boat starts long before you lift the dinghy out of the water. It starts with understanding what you've anchored in and whether your gear is genuinely suited to it.
For New Zealand waters specifically, the range of anchoring conditions is wide. Muddy estuaries, rocky bays, mixed sand and weed bottoms are all part of the picture. A modern scoop-style anchor such as a Rocna or Mantus, sized generously for the boat rather than to the minimum spec, paired with quality chain and a proper snubber, provides a strong base to work from. A second anchor, one that is equally capable rather than a token backup, rounds out the system.
Gear, though, is only part of it. Reading the anchorage, watching how other boats are lying, thinking about what the weather might do while you're away, and building the kind of instinct that only comes from time on the water: these are what complete the picture.
So the next time you row the dinghy ashore and head up a mountain, make sure you've given the boat every possible reason to be waiting for you at the bottom.
*Suggested reading and resources*
Practical Sailor Anchor Tests (2020–2024)
Mantus Anchors Seabed Guide: mantusmarine.com
Rocna Anchors Seabed Guide: rocna.com
Maxwell Anchoring Guide: maxwellmarine.com
Fortress Anchors Holding Power Reports: fortressanchors.com
Drag Queen & Anchor Pro apps (iOS/Android)
