One of the best views in Bellingham. The climb is worth it, and the historic tunnel along the way makes the hike even better. Sehome Arboretum Observation Tower – Bellingham Rising 80 feet above Sehome Hill, this wooden observation tower offers sweeping views of Bellingham Bay, the San Juan Islands, and, on clear days, Mount Baker. The tower sits within the 175-acre Sehome Hill Arboretum, where miles of forested trails and the historic 1923 Huntoon Tunnel make it one of the city's most popular hiking destinations