23-year-old James Kingston broke in to the building site to perform his stunt, managing to completely evade security.
Penguins, terrapins and sharks among the creatures given their regular clean-up.
Hundreds of skateboarders delivered 30 boxes of objections earlier in the next stage of their battle to save South Bank skate park.
The musicians of the Royal Philharmonic Orchestra swapped their violins and flutes today for water glasses. And if you're keen-eared you may have noticed that they also dropped Mozart and Beethoven - in favour of the likes of Katy Perry.
The special performance on the South Bank - dubbed the "H2 Orchestra" - was in benefit of the charity Water Aid.
Instead of cutting the grass this winter, gardeners who work on top of the Queen Elizabeth Hall, have invited some goats to do the job.
Four of the animals from Vauxhall City Farm provided the more eco-friendly alternative!
Stage and film director Rufus Norris, whose works have included a collaboration with Blur star Damon Albarn, is to be the head of the National Theatre, succeeding Sir Nicholas Hytner.
Norris has been an Associate Director of the National for the past two years and worked with Damon Albarn on the opera Doctor Dee. He said:
"The National is an extraordinary place, full of extraordinary people, and I look forward with relish to the task ahead - that being to fill our theatres with the most exciting, accessible and ground-breaking work our unique and broad community of artists has to offer."
Rufus Norris will take over in April 2015.
The biggest lava lamp in the world has gone on display on the South Bank. The 200-litre version was created to mark the 50th anniversary of the company that manufacturers them.
Cressida Grainger, the Managing Director of Mathmos, says the super-size lamp will go on display as part of the London Design Festival.
– Rich Holland, Architectural Designer
All the architects have responded really well to the brief and came up with some fantastic proposals for creating a new urban space under Hungerford Bridge.
The kind of features which skateboarders enjoy - ledges, steps, banks, blocks - are all there, but unlike in a conventional skatepark or skateplaza they have not been explicitly designed solely for skateboarding.
Skaters who use the Southbank Centre's site are refusing to look at the plans for its redevelopment. Speaking to the Evening Standard, a spokesman for campaign group 'Long Live Southbank' said:
"The conversation has always been about the preservation of the undercroft and that is a conservation they're refusing to have. Any conversation about Hungerford Bridge is a distraction from the real issue."