Watch: 50+ tall ships parade through Boston Harbor

It’s been 17 years since Boston has seen the Tall Ships parade through the city’s harbor. But that wait ended Saturday morning.

Despite some heavy fog, Sail Boston kicked off the anticipated maritime festival with the Grand Parade of Sail at 10 a.m. After grouping together offshore, the ships will loop through Boston Harbor, eventually docking in Charlestown and the Seaport.

More than 2 million people are expected to attend the six-day celebration. Here’s everything you need you know if you’re one of them.