Umihotaru is a sea bound rest area on the Tokyo Bay Aqua-Line that connects Kawasaki in Kanagawa Prefecture with Kisarazu in Chiba Prefecture. On the 4th floor you can shop in a large glass corridor with sea views, and the 5th floor features restaurants where you can enjoy a meal while looking out over the sea. This rest area offers fun activities for people of every age, including Japan's only amusement arcade in a rest area, a time capsule post box that delivers letters about a year later, and the Bell of Happiness where you can share your feelings with someone important to you.
Hours: Open 24 hours (varies by facility)
Address: Nakajimachisaki Umihotaru PA, Kisarazu, Chiba Prefecture 292-0071
Airport: Tokyo International Airport (Haneda)
About 40 minutes from JR Kawasaki Station by express bus
About 30 minutes from JR Kisarazu Station by express bus