People take off in these boats in search of dolphins where the River Mandovi meets the Arabian Sea. We did see a pair twice but the numerous boats arriving scared them away eventually.
A tip to dolphin seekers. Please insist on lifejackets which seem to be missing. The boatmen are very experienced but the increasing traffic can lead to a disaster at sea.
Coco Beach is the ideal place for trinkets and Goa Tee-shirts. Bargain like hell and bring the price down to one-fourth of what is asked for.