South Goa map in detail with itinerary path to cover the beaches south of Margao. Colva Beach to Polem Beach distance is about 65km, if you follow the NH17 highway. And it would be about a 100km+ distance drive if you include many of the short detours on in this itinerary. Follow this path to plan your day's itinerary, keeping Margao as the start/end point and cover attractions south of Margao, along the coastline.