Many birds including grey heron, Â moorhens, tree creepers, great crested grebe and the fluorescent kingfisher can be seen around the river. Â Ancient oak, willow, beech trees and hawthorn hedgerows are among the many different types of vegetation here. Â You may be lucky to see a an otter or two. Â Please describe your journey to the cache and maybe attach a photograph. Â The cache only has room for a log.