Have you been to Kenwood? (ISTR it being mentioned as a possible hen-do venue) If so, you'll have an idea if anyone there bathes nude in the normal course of things (if not, you probably don't want to either).
Are you doing the immersion because you want to do the right thing, or because it's a requirement, and you're box-ticking? If the former (which I'm inclined to suspect), I think the Orthodox Mikvah is a less-good idea - I suspect you may feel afterwards that it wasn't quite the right thing to do. If it's more of a box-ticking exercise, then go for that if it's convenient.
How long does the process take? finding a local witness might not be too bad if they could do it as a long-lunch-hour...
no subject
Are you doing the immersion because you want to do the right thing, or because it's a requirement, and you're box-ticking? If the former (which I'm inclined to suspect), I think the Orthodox Mikvah is a less-good idea - I suspect you may feel afterwards that it wasn't quite the right thing to do. If it's more of a box-ticking exercise, then go for that if it's convenient.
How long does the process take? finding a local witness might not be too bad if they could do it as a long-lunch-hour...
[sorry if this was a little impertinent!]