From July 1st until the end of August, Beach Houses (Umi no Ie) open all along Yuigahama Beach and Zaimokuza Beach. Houses have a set closing time of 8:30pm, but some may stay open a bit later. In addition to providing food, drinks, and music, the houses also rent out inflatables, beach chairs, umbrellas and more. Many offer hot showers and changing rooms, and all offer a bit of shade from the strong sunshine. The houses are also a great place to strike up conversations with locals and visiting Japanese!
Many houses also have events throughout the summer, and most offer a BBQ menu for groups.
Head straight down Wakamiya Oji (main street) until you arrive at the beach. Everything from there to the right is Yuigahama Beach and everything across the bridge and to the left is Zaimokuza Beach.