A Grapnel anchor is generally used for small boats such as Kayaks, Dinghies, Canoes, etc. It’s also popular with fishermen.They fold up very compactly and are easy to stow. A Grapnel’s holding power comes from hooking onto another object, such as a rock. When it does hook, it can create immense holding power, which can also make retrieving the anchor difficult.

Pros: Great for use as a lunch hook. Folds to allow for compact storage.
Cons: Not appropriate for non-temporary anchorage.
Bottoms: Rock or other situations when it can hook onto an object.