The Crescent Valley Retreat was a resort in the Mallarashtra province on planet Deneva. One of the features of the Crescent Valley Retreat was a series of fountains which would be illuminated by multicolored lights after sunset.
Garson Tiernan spent time at the Crescent Valley Retreat, along with his then wife, in the early to mid 24th century. Jasminder Choudhury worked at the retreat as a teenager in the 2350s, and while there, shared her first kiss with Geeta Jalal. (TNG novel: Losing the Peace)