Come back in a day or so. If the mole is using the tunnel, it will have moved the soil, closing your hole. If you choose to get rid of moles in your yard, knowing which tunnels are active will help ...
The Whack-a-Mole Easter Egg is found at the southern part of the Terminus map on Crab Island. Dock on the northwest shore, go to the north side of a rock formation at the heart of the island and look ...