The park opens at sunrise and closes half an hour after sunset, so it depends on the time of the year.
Whatever time sunrise is on that particular day
Sunrise to just past sunset.
I logged on when I noticed there was a question about my favorite workout spot thinking that someone had a question worthy of giving the time and attention to... and then I see this question about when does the park open. There oughta be a screening process to filter out unintelligent questions
Sunrise and sunset
Thanks! Your answer is awaiting moderation.