Newcastle’s Waterline Trail runs south from Newcastle Way past Lake Boren Park to May Creek Park, in a waterline corridor owned by Seattle Public Utilities (SPU). The corridor angles down to 129th Ave SE (near the library) and follows the street south across the China Creek Trail (with lakeshore access) to the historic Newcastle Cemetery. Here the CrossTown Trail angles southeast to the fishing pier in Lake Boren Park (and runs west to Olympus and Hazelwood). The Waterline Trail passes the park on a utility road, and continues as a pleasant trail flanked with trees. After passing the south entrance to the Olympus Trail, it crosses May Creek Park Drive and enters May Creek Park. It ends at the May Creek Trail: a left turn brings you down to the creek; a right turn sends you west on a broad flat rail-trail with cuts and fills.
Waterline

Open
- Length
- 1.28 miles
- Elevation gain
- 38 ft
- Route
- Point to point
- Difficulty
- Easy
- Surface
- Gravel, Sidewalk
- Permitted use
- Stroller
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