Save the Harbor/Save the Bay, a group focused on protecting Boston Harbor and the region’s beaches, is awarding $2,000 to local organizations for events this summer. The Friends of the Paragon Carousel will get $1,000 for its reading program, which features a children’s storytime on six Fridays from mid-July through August. The Hull Nantasket Chamber of Commerce will receive $1,000 toward the annual Endless Summer Waterfront Festival, scheduled for Sept. 21. In addition to the grants, Save the Harbor/Save the Bay gave each group 22 1-inch-diameter blue-and-white marbles to scatter on Hull beaches as part of the “Simply Marble-ous” Treasure Hunt sponsored by JetBlue Airways. Anyone who finds one of these marbles between July 4 and the end of the summer will be entered into a drawing to win round-trip airline tickets from JetBlue Airways.