Jomyoji is a Zen temple originally called East Gokurakuji, which belongs to Rinzai sect of Buddhism. Just a little background, the temple is founded by Yoshikane Ashikaga in 1188, which enshrines the Statue of Shaka Nyorai.
Jomyoji is one of the Great Five Zen Temples of Kamakura. It also has a teahouse called Kisen-an, where you can experience an authentic Japanese tea ceremony, while enjoying the relaxing view of dry rock garden.
The temple is near Zuisen-ji, another Zen garden that's also worth visiting to expand your tour in Kamakura.
Jomyoji temple can be reached via Kamakura Station. From there, ride a bus (bus no. 23, 24, or 36) and alight to Jomyoji bus stop.
The temple is open all year round from 9:00 to 17:00, with 100 yen entrance fee.