You are looking for a magnetic key holder. Stealth shouldn't be
an issue, but a few houses overlook the area. Only a log fits in
this one so bring your own pen. Don't go beyond the barrier or you
might be in the Potomac River.
Take some time to enjoy the view of the river and the osprey
nest. You can see Virginia from here.
Congratulations to
Mac and LaLa on the First to Find [FTF]