Mentioned by Secret London
8 Romantic Spots In London To Explore With That Special Someone
"This indoor haven contains tropical plants, trees, birdlife and over 2000 species of exotic fish. Under the safety of its glass roof, you can (almost) pretend that you’re on a romantic getaway in a faraway country. Hidden behind the leafy shrubbery, it’s easy for the two of you to hold hands and wander around uninterrupted."