Resurrection Bay cuts twenty-four kilometers into the Kenai Peninsula, a glacially carved trough whose steep walls drop nearly three hundred meters below the waterline. The bay earns its name not from any religious event but from the Russian explorer Alexander Baranov, who charted these waters on Easter Sunday in 1792. What Baranov documented — and what remains true two centuries later — is that the bay's sheltered depths and nutrient-rich currents create one of Alaska's most concentrated marine mammal corridors. Humpback whales arrive each spring to feed on herring and capelin, their forty-ton bodies breaching within sight of Seward's harbor pilings. Steller sea lions claim the rocky haul-outs near Caines Head, while harbor seals slip between kelp forests that tower five meters from the seafloor. The bay sits within the five-hundred-seventy-thousand-acre Kenai Fjords National Park, though its eastern shore remains outside federal protection. This jurisdictional split matters: commercial vessels operate year-round from Seward Small Boat Harbor, the only deep-water port with road access between Anchorage and Homer. Operators run Resurrection Bay wildlife cruise tours through all seasons, though summer brings the fullest species roster. Orcas hunt in transient pods along the shipping channel. Dall's porpoises carve white wakes at eighteen knots. Tufted puffins nest on offshore stacks from May through August, their breeding plumage — orange bills, trailing golden crests — visible only during those narrow months. The geology here is active. The 1964 Good Friday earthquake dropped the coastline nearly two meters in six minutes, drowning spruce forests that still stand as bleached trunks in the intertidal zone. Tidewater glaciers once filled the bay to its mouth; today only Bear Glacier remains, its terminus floating ten kilometers up a side arm. The bay's bathymetry funnels upwelling currents from the Gulf of Alaska, pushing cold, nutrient-dense water into the photic zone. Phytoplankton blooms feed zooplankton, which feed forage fish, which feed everything larger. The food web here is legible from the deck of any vessel: kittiwakes diving where baitfish ball up, sea otters cracking urchins against their chests, humpbacks lunging through the boil. Seward rebuilt itself as a cruise departure point after the railway and fishing economy contracted. The harbor now berths seventy tour operators, most running identical routes to Northwestern Glacier or Holgate Arm. Resurrection Bay itself — the inner bay, the near shore, the protected water — sees less traffic, which keeps encounter distances shorter and sightings more reliable. The best captains read the tide book and the herring schools, adjusting course in real time rather than following yesterday's whale report.