Kate Middleton wore wellies for a walk around Llanddwyn Island with her sister Pippa Saturday. Pippa's boyfriend, Alex Loudon, was along for the stroll too. The scenic spot is near Kate's home in North Wales and is part of a large nature reserve. The sisters were dressed down for the outing, which comes just days after a more formal appearance for Kate. Kate Middleton was in Alexander McQueen to meet with a group of responders that helped during the UK riots. Kate's been laying low since returning to the UK from her trip to North America in July, though Pippa has been seen stepping out around town. She was spotted meeting her mom Carole for lunch and also showed her support for boyfriend Alex at a cricket game.