Watchtide by the Sea, once known as the College Club Inn, is a historic traveler accommodation at 190 West Main Street (United States Route 1) in Searsport, Maine. Based around an early 19th-century house and developed as an inn and tea room in the early 20th century, the property exemplifies the adaptive reuse of older properties for the tourist trade in Maine. It was listed on the National Register of Historic Places in 2000.