Head to North Goa. You will enjoy most.
Baga Beach, Calangute Beach, Candolim Beach, Vagator Beach & Old latin quarter of Goa
Head to South Goa and check out these beautiful beaches.
Palolem Beach, Cola beach & Butterfly Beach
For sunset go to chapora fort. Baga and calangute beach are always crowded, explore other beaches like vagator, candolim in North. In South go to colva, palolem, benaulim beach
Day 1-north Goa . anjuna, vagator , morjim , Calangute beach spend evening at chapora or aguada fort
day2 - visit south Goa palolem , Candolim and other beaches.. visit churches and old Goa too... spend evening in cruise
day3- do water sports at island...
day4- Dudhsagar waterfalls (must visit)
thank you