GRIGNAK is named after the rock monster in Galaxy Quest, but also refers to rock markers along the trails that lead to Thingvellir National Park in Iceland. It's our (Nat Bailey, Optimus Grime and E2M2T2) first cache.
We made it a regular cache. It's one of those typical plastic left-over tubs. Inside, there's a log book and pen, Icelandic coins, a fishing float, AA batteries (take only if you need), a valid Vancouver bus pass, a Pac-Man shaped rock from Booth Bay, and a beautiful white rock from Kluane Lake in the Yukon.
You're in the trees at this point, so be generous with your search pattern, and respective of the moss and undergrowth as possible.