“e” inc. — Boston’s environment science learning and action center — offers two one-week summer programs for ages 6-12 in late August, after many camps and summer programs have concluded:

• Unexplored Frontiers: The Deep Ocean (August 19-23)
• The Solar System & Beyond (August 26-30)

To register, scroll down their program page to find the forms to print out and return (by USPS mail or email) and then pay online or by USPS mail.