Castle in the Clouds is open weekends only through June 2nd.
They are open daily beginning June 8th.
http://www.castleintheclouds.org/
Squam Lakes Science center is open May 1st-November 1st, daily from 9:30A.M. – 4:30 P.M.
The Wright Museum is open from May 1st-Oct 31st.
Daily hours are: Monday-Saturday 10A.M.-4P.M.; Sunday 12P.M.-4P.M.
The Remick Museum will be open for the Summer after memorial Day.
Daily hours are: Monday-Friday 9A.M.-5P.M.; Saturday 9A.M.-5P.M.
The Currier Museum is open Sunday, Monday, Wednesday-Friday from 11A.M.-5P.M.; Saturday from 10A.M.-5P.M. Closed Tuesday.
Please refer to website for holiday closures.