Strange rocks obtained by training Fishing are part of the Dahmaroc statue. Two Strange rocks from each skill are required to complete the statue, which can be built once per week. Strange rocks may be stored inside a statue collection bag.
Fishing with a harpoon, net, cage, fly fishing rod, fishing rod-o-matic, or barehanded. Fishing for Rocktails or Cavefish in the Living Rock Caverns, salmon, trout, and barbarian fishing leaping fish are ways to obtain the rock.