This is a precautionary memo to advise that public schools and public school staff may not constitutionally organize trips to Ham’s Ark Park, with its clear religious goal and portrayal of fiction as divine truth, or to the Creation Museum or any other religious venue.
In this country, Ham is free to erect monuments to his bible, but public schools are not permitted to expose the children in their charge to religious myths and proselytizing.
public schools cannot organize trips for students to either the Creation Museum or the Ark Park. Doing so would violate the students’ rights of conscience and the Constitution.
Source : http://www.patheos.com/blogs/friendlyatheist/2016/07/08/atheist-group-warns-1000-public-school-districts-dont-plan-field-trips-to-ark-encounter/