If the weather has you thinking about things to do indoors, a couple of exhibits I’ve written about may make for interesting alternatives.

Opening tonight at the GAGA Arts Center, 55 West Railroad Avenue in Garnerville, is “Pictures from Croatia: Through the Eyes of Children,” an exhibit of about 50 photos taken by young students of professional photographer Ken Karlewicz. Karlewicz and the five students were guests in Croatia of Robert Benmosche of Wesley Hills, who helped underwrite the trip because of his personal interest in photography and his desire to offer the students a life-changing opportunity. There’s an opening reception this evening from 6 p.m. to 9 p.m. at Gaga. Beginning tomorrow, the hours through Oct. 4 will be 4-8 p.m. Friday, 2-6 p.m. Saturday, noon-4 p.m. Sunday.

Closing this weekend is “Fish & Ships: The Hudson River in the History of the Nyacks,” sponsored by the Historical Society of the Nyacks. It’s the centerpiece of Nyack’s Quadricentennial of the Hudson, and traces local history along the river from Dutch settlers to the lasting influences of the Tappan Zee Bridge and New York State Thruway. It ran from mid-June to mid-July and then from mid-August to date. The exhibit, featuring photos, paintings, maps, historic items and documents and much more, will be up for another week or two for visits by appointment or for trips by school classes, but tomorrow and Sunday are it for the 1 to 5 p.m. public hours at 60 Cedar Hill Avenue, Nyack. For information, call 845-704-7343 or e-mail exhibit2009@nyackhistory.org