Mt. Fuji to Naoshima

Hi there,

It may depend what time you travel. Sometimes the best route can be different depending on what hour you travel and what train connections are possible. The most forward route to me looks like to get on the Shinkansen at Odawara to Okayama (likely with a transfer at Shin-Osaka or an other shinkansen station). Then a local line to your AirBnB or to Uno where you can get on the ferry to Naoshima.

To be sure, check your travel time in Hyperdia. It should be able to tell you the best option. Alternatively, just tell the JR Staff when booking your tickets, when and where you want to travel and they'll find the best route for you.

Hope this helps,
Daniel