You can go in all year round. The sun rises at about 4:30 in Beidaihe in June. The opening hours of the pigeon nest: [May to September] 3:00-18:00 [October to next April] 8:00-18: 00. The ticket price is [peak season] 20 yuan (children 15 yuan) [low season] 5 yuan. So if you want to watch the sunrise, you can enter the Pigeon Nest Park no matter what time. Hope to adopt!