Jogashima park was used to be the fortress island.
There are two observatories which has great view of Tokyo Bay area and Pacific Ocean. Jogashima Park is very popular walking spot. In stead of beach, it has very unique rocks on the seaside.
Jogashima Park (城ヶ島公園) is a seaside park with many daffodils and pine trees located in Jogashima Island. Jogashima is the only island of Kanagawa prefecture located in south side of Miura Peninsula. It is a popular Daffodils spot in Kanagawa. There are about 500, 000 daffodils which bloom from December to January.
Tourist Info.
There is a parking.
Admission: Parking cost 420 yen.
Park opens all day, but parking close at 17:00.
Access
0. at Yokosuka Station.
1. use JR Yokosuka Line to Kurihama (10 min.)
2. use Keikyu Line to Misakiguchi (10 min.)
3. use local bus to Jogashima (30 min.)
45 min
New Wave Samurai Movie. 
映画好き集まれ！ 
Jogashima park was used to be the fortress island.
There are two observatories which has great view of Tokyo Bay area and Pacific Ocean. Jogashima Park is very popular walking spot. In stead of beach, it has very unique rocks on the seaside.