BiggerBoatMapExploreRadius is a BepInEx mod for Valheim that increases your map exploration radius while sailing a boat ⚓. The effect only applies when someone is actively controlling the boat, making ocean exploration faster and more efficient.
You can configure the boat exploration radius to be larger or smaller, with a default value of 500m. Install by extracting the archive, moving the plugin files into BepInEx\plugins, and launching the game to create the config file.