Varca Beach is in south Goa.
It is a less crowded beach, while there is a crowd but one can also find a private spot.
It has lot of food joints serving international cuisine.
Spend your time at the beach playing games (in case you have kids, all the better), relaxing under the beach umbrellas which are available at reasonable prices, and simply enjoy the laid back & relaxed atmosphere enveloping the beach.
The beach is also safe to swim and has some water sports available.