You can park at the visitor centre car park off Speech House Road to start your walk. From here you can pick up the marked trails to the artwork. The trail is free to access and the visitor centre also includes a picnic site and a nice childrens' playground.
Just to the east of the site you will find the interesting Woorgreens Lake and Marsh Nature Reserve. Here you'll find a pretty lake with lots of wildlife to look out for. This includes several species of dragonfly and birds such as spotted redshank, greenshank, green sandpiper and curlew. It's well worth a small detour from the main trail. Also nearby is the Speech House Oaks. The site is a linear band of open woodland of oak on either side of the Speech House Road near the trail. There is a variety of interesting flora here and a wonderful mosaic of different types of tree. Look out for the redstart bird in this area.
To extend your walking in the area you can pick up the lovely Forest of Dean Family Route which runs just past the trail. The circular cycling and walking trail is a great way to explore the area on foot or by bike. Following it south for just over a mile, will take you to the delightful Cannop Ponds.