That is correct, most lines around Hakone localy is non-JR lines, you can still reach fairly close with a JR Pass but for the region itself you’ll need a Regional Pass or pay individual tickets. Normally you’re better off by just buying individual tickets in that area.

You can read more about all available regional passes here: https://getjrpass.com/regional-pass/

Some are sold manually via email with us and a paymentlink and some can be bought via getjrpass.com directly.

Hotels can be booked via Nalatrip, one of our other site: https://nalatrip.com/hotels/