The Licht- und Luftbad, or short LILU, is probably one of the most secret spots in all of Frankfurt. It has almost everything you could wish for during a warm summer day: plenty of grass to sit on, some trees for shade, spots for a barbeque, even a small restaurant, but it is still fairly unknown to many people form the city.
Although located in the outskirts of the city towards Niederrad, it won’t take you much longer than 15 minutes from the city center. The concept of LILU is simple: to offer people the chance to escape the noisy city and relax, but also eat, drink, and talk amongst the sound of tree brushing in the wind and the nearby river. The whole park is very well maintained, and everything offered is priced very moderate. You are even encouraged to bring your own food or drinks, as long as you clean up after yourself.
Only keep in mind the opening hours: LILU opens at 9am and closes when it gets dark. So you won’t be able to party here all night, but it is good for at least a nice picnic or a barbeque with friends. They even offer you the chance to rent a grill if you don’t have one yourself. But you still didn’t hear the best part: There is no entrance fee, just walk in and pick a spot to relax!