A brave youngster is to celebrate beating an aggressive brain tumour with his first trip to the beach as soon as isolation is over.A year ago, Caleb Strirrat had less than a 50/50 chance of survival and was on his way to Florida for proton beam treatment in a bid to save his life.Now medics have confirmed the four-year-old triplet is tumour-free – but the celebrations are all on hold as Caleb is on the vulnerable list and has to shield from Covid-19.The family, from Clydebank, were coming out of their own isolation when the virus took hold and the lockdown began.But they are counting the days until they can enjoy all the things they had planned.Mum Karen said: “All through his treatment, the only thing Caleb asked for was to go to the