Yes. And it is not just/only beautiful, but large, and it also has a legend about a monster.
Banyoles, in the province of Gerona, is the largest lake in Spain and in the Iberian Peninsula, at the foot of the Catalan Pyrenees.
I am not from Spain, but I read about this place, and the interesting thing about Banyoles is that, as in the case of the famous Loch Ness in Scotland, there is also a legend in this case about a supposed monster that inhabits the bottom of the Banyoles.
It is said to have been first spotted by Charlemagne twelve centuries ago while exploring the area during his stay in Girona. To end the beast, he enlisted the help of Saint Emeterio, a French monk, who managed to hypnotise the dragon with his prayers and supplications, 'persuading' it to return to the bottom of the lake, and never disturb people's lives again.
Perhaps that is why no one has ever seen the monster again, but if anyone is curious and want to investigate on their own, it would be worth a visit to this beautiful lake.
Thanks for the info such interesting history and legends there