Near my house there is an introduced population of Tree frog (Hyla arborea) in the dunes, the population was first observed in 2005/2006 and seems to be thriving here. They have even expanded their former range eventough they don't occur in the dunes naturally. Anyhow, yesterday I went with my girlfriend to the area and we could easily observe some groups of fallow deer, lots of birds, grass frog, edible frog, tree frog, common toad, natterjack and sand lizards.
Find all four
Tree frog, 1 meter above my head in a tree
Natterjack (Bufo calamita)