It is one of the largest walled city parks in Europe. It can take 3 or 4 hours to visit the park. So, you can rent a bike. You can come across herds of deer in the park. If you want, you can feed these deer and take pictures with them. There are also many places to visit in the park. There are places such as the Dublin zoo, the Papal Cross, and the Wellington Monument. İf you want you can have a picnic with your friends Instead of taking a walk.