Especially among outsiders, it’s common to speak of our bay system in the singular. In part, this is because the average person knows little about a secret, watery geography that reads like poetry. West of Holgate, Hither Channel leads to Soldiers Hole, which winds between Story Island and Goodluck Sedge. These hidden maps belong to those in the bay. Yet, estuaries are a varied, subtidal universe, wherein the only constant is change. This includes clams.