Shirahama Flower Park

Name in Japanese: 白浜フラワーパーク
Area: Shirahama
Address: 1454 Shirahamacho Nemoto, Minamiboso, Chiba Prefecture [map]
Phone: 0470-38-3555 0470-38-3555
Hours: 9am - 4:30pm

Despite the name, it’s actually a camping ground. Within the park, there is a popular swimming pool complex which is open from July 14th until September 24th. Admission to the pool is ¥1,000 but cheaper if you’re camping there.

The park also has a private ocean beach.