Bluebell Dell is a place in the Smurf Forest that was the intended setting for Woody and Laconia's wedding in the cartoon show special "Smurfily Ever After."
Mainstream Smurfs Media
The Smurfs had made all the preparations for the wedding to take place in this location. However, Gargamel showed up at the wedding with a magical musical machine called the Ghoulliope, which was presented as a harmless gift from Mother Nature with a note saying that she couldn't attend. During the wedding ceremony, Gargamel switched the music from a standard wedding tune to the machine's haunting melody that put the Smurfs in a trance and caused them to walk up an extending ramp toward a boiling cauldron within the Ghoulliope. Laconia rescued Smurfette from the music and worked together with her to stop Gargamel's Ghoulliope, freeing the Smurfs from its hypnotic music and sending Gargamel and Azrael flying into the wizard's muck pond.