"How far are you away from me now?" Seán Killeen, 85, is on a video call from his home in South East London to his grandchildren Philip and Layla Killeen at their home in Kiltullagh, Co Galway.
Philip Killeen, 16, explains to his grandfather he is "somewhere in the Irish Sea now". They are talking about a charity cycling challenge Philip is undertaking to give hope to his grandfather after the loss of his wife.
Mary Killeen died of cancer seven weeks ago at King's College Hospital in London. Philip is fundraising for Cancer Care West by cycling 775km within lockdown limits.
The distance of 775km is a symbolic one. It is the distance from Philip's family home in Galway to his grandparents home in the UK; a journey Philip's family could not