Lily-Rose, Ant, Cat, Jay, Nature Chris and Skipper the dog travel to the beautiful Isle of Arran for a nature holiday. They meet local children, who show them the amazing wildlife that can be found on the island. Oisean and Katherine take the team for a hike in the Glen, where they are lucky enough to spot eagles and adders among other things. Elsewhere on the island, Green Balloon Club members Abi and Finlay are watching red squirrels, whilst Charity and Kirsty show us the wide variety of birds that visit an Arran garden. Meanwhile, Jay, is on a day out at the WWT Wetlands trust. He and his friend Hannah are birdwatching, looking at the wetland birds to be found in this oasis in London. And of course the Green Balloon Club is never complete without a song - a special song for the Arran holiday.