There are 2 piece full cover bathing suits called tankinis.
For a 1 piece, you can get a 1 piece skirted and/or shorts bottom bathing suit.
Q has some nice & cute bathing suits. Check them out.
If you have not already done so, check w/your senior service center for senior water excercise classes. In my neck of the woods, these classes are held in gyms, community centers, YMCA. Most if not all are free and/or your health ins will cover the costs. Dr rx, all are FREE!
"Never argue with a fool. Onlookers may not be able to tell the difference."
