We just returned from DRM yesterday!  The foam party is still on Friday at 2:00pm in the pool.  It was fun!
We have been to DRM foam parties in 4 locations so far.  The pool, the old (now defunct) tennis courts, the lobby area and on the beach.
Our favorite was also the night party at the old tennis courts with glow paint and black lights.
Coming in second is the current setup.
The lobby area was too dangerous with the fountains and furniture.  When it was there, we saw people dancing in the fountains, with the foam higher than the water level!  
Our least favorite was during September 2015? when the pool was closed for renovation.  They moved the foam party to the beach near the volley ball court.  It was also at night, so we thought of the old tennis court activities and were excited!  It was fun at first, but the water from the foam soon turned the sand into quicksand and dancing was impossible in ankle deep wet sand.  After a while the sand migrated up into the foam, so everyone out there had an exfoliating experience!  We gave up and left after only about 20 minutes.  It did make for some interesting looks from people walking the beach from other resorts!  
 I also understand that they tried for a short period to have it up on the roof at the hot tub.  That sounds like a bad idea on many levels!
We also attended the foam party at DP once, it was about like the current one at DRM. In the daytime, in the active end of the pool there.  The DJ for that one was really good.
Bottom line, we (usually) enjoy our adult bubble bath time!
Cheers,
Tim and Andrea