There are three points of entry to Vashon Island:


How to get to Vashon by Bicycle
Turn this into one paragraph and a bullet list of directions: Vashon Island is a popular biking destination. With plenty of long, windy roads with minimal traffic and trails throughout the island that challenge even the savviest of mountain bikers, you will find that no matter what the weather brings, bikers are all over the island.
Getting to the island by Bicycle is easier than by car. Bikes don’t have to wait in line, and the additional downtown Seattle to Vashon’s North end passenger ferry allows for bikes with racks on the Stern end.
Bikes that come across the larger car ferries will need to walk on with passengers and leave their bikes on the deck. You should chain your bicycle to the rail while you head upstairs for a rest during crossing. Cleats are not allowed on the upper deck, so be prepared with a change of shoes or cleatless cycling shoes.
Once you get to the Island, both the North and South end invite you with a long climb up roughly 400 ft before leveling out. The Vashon Highway runs from the North end ferry terminal to the South end ferry terminal (Seattle to Tacoma), about 13.6 miles total. You can take many routes around the island, and all will challenge your endurance with hill climbs and windy roads with a few flat, straight stretches (depending on where you go).