Before Goa- Do the things.
Book the hotel- Near Calangut or Baga without fail with brk fast and swimming pool.
To save the money book through online.
Book your flight prior to 1 or two months for good fare.
Do exercise prior to 15 days.
Buy all trendy shorts from online.
Let's start the amazing journey of Goa.
3 days must be there.
Once you landed in Goa airport come out and hire a cab, they charge standard 1200-1500 as per time. Night time they charge 1500 to calangut or Baga area. No Ola Uber is there. Goa is one my favorite place I have been many times. So start your day with NorthGoa beaches.
Calangut, Baga, anjuna, arambhol, candolim, vegator, chaporafort, Agoda fort etc.
I suggest at night time go to baga beach and baga lane itself is a heaven till morning. If you are on Sat or wed there is foreign market near Arpora you will love it with shopping and live song by Russian.
Next day go to South Goa.