Description
What's this? You seem to have found a secret stash of some sort, hidden under the water. While you have no need for the various trinkets and supplies inside, the people in the local bunker could always use things to aid them survive. Perhaps there are more of these stashes along the riverbed.
Upon completion
What do you have there? Supply chests? Oh, and I recognize this seal - it's from the Martins family! Thank you for recovering these.