To sign off all the 50 geocaches in the Park you could stay in the Courtyard House. To book it just visit the previous link. Or if you own a Certified Self-Contained Motorhome or Caravan you could stay for 1 night in the carpark or for longer at the Campground within the Park with either the previous type of accommodation or a tent visit this link to book.
OR you could make a big day of it.
Gate opening hours
Daylight savings (summer): 6:00am - 9:00pm
Non daylight savings (winter): 6:00am - 7:00pm
There is 24hr pedestrian access.
The cache is a 200ml plastic bottle.