Since you asked, I do think it is odd that your grandchildren sleep with you if you have other accommodation available for them. Also, a nine-year-old should be able to bathe or shower alone. I would worry more about lack of independence at that age than anything improper, but at age 9 I would expect a boy to be more modest than you are describing.
Free printable topographic map of Morro Bay (aka Moro Bay and Bernard's Bay) in San Luis Obispo County, CA including photos, elevation & GPS coordinates.
January 15-18, 2016. Morro Bay and the surrounding area is an idea spot for avid birders. Located on the Pacific Flyway, Morro Bay is a Globally Important Bird Area and a designated State and National Estuary. Morro Coast Audubon Society always ranks in the top five for the Audubon Christmas Bird Count. Once again, over 200 different bird species were spotted during the 2015 Festival.