Ahead on the seawall, where the Severn River meets Spa Creek and the Annapolis harbor, a green lamp marks the Triton Light. Donated to the Academy and named for the Greek god by the Class of 1945, this marker is woven into Naval Academy culture and traditions and serves as a trusted navigational point in Annapolis Harbor (33 CFR 110.159). About a year after the light was installed, the crew of USS Triton (SSRN-586) completed her historic submerged circumnavigation and provided samples of water from the 22 seas through which their boat had passed; those waters were used to fill a globe built into the light.
Watch the lamp’s pattern: FL (4+5) G 30s — a Flashing Green light four times, then five times, every 30 seconds. That odd 4-plus-5 sequence is unique, an honor commemorating the Class of 1945. Mariners still use this stretch of seawall: from Triton Light northwest to the end of Simms Road at College Creek is exactly 1/2 nautical mile, a handy baseline for calibrating speed instruments.
Beyond it stretch the seawall, the winding Severn, Spa Creek, and the harbor of Annapolis, still guiding mariners today.