Running along Eastbourne seafront, the train is now part of the Chasing Rainbows campaign, a summer activity raising awareness of fertility, perinatal mental health and baby loss support. The campaign is organised by Sussex charity Muma Nurture and includes a Rainbow Passport trail across Sussex. Joel Mitchell, managing director of Stagecoach South East, said: "The Dotto Train has always been about bringing families together and creating memorable experiences in Eastbourne. The Rainbow Passport challenge runs until August 31, 2026. The Dotto Train operates daily until September 13, 2026, except during the Eastbourne Airshow from August 13 to 16.