Parched dogs and their owners can now slake their thirst while walking at Henley Lake.
The Henley Trust has installed a new drinking fountain with separate taps for dogs, people and water bottle filling, as the lake water is unsafe to drink.
Henley Trust Chairman Tom Ward said the idea had been in the pipeline for about three years.
"The idea came about several years ago when people were concerned about a lot of dogs drinking the water and someone suggested a water fountain."
The fountain was generously donated by Paul Walker and bears a plaque in memory of his faithful dog, Biggles.