I'm looking at the Thames Clipper / Royal Observatory combination ticket on the Thames clipper site. It says it includes a round ticket and admission to the Observatory, and that travel is good for the central and east zones only.
We're staying in Pimlico, so the Battersea Power Station pier looks relatively close - but that line doesn't go to Greenwich. So we'd have to change boats? Or can we hop on anywhere in the Central Zone? And on the way back, we'd like to go to the Globe - is it as easy as just getting off at our preferred stop? I realize the Thames Clippers are commuter boats, just not sure how tightly they control ingress and egress.
Also, on the Observatory ticketing site, it looks like there are very few tickets left for our preferred date / time. I'm assuming if I can buy one on the Thames Clipper site, admission is guaranteed?