A seven-year-old boy aspiring to one day be part of a lifeboat crew has raised thousands of pounds after completing a 40-mile long charity walk over four days last week. Johnathon Jarvis started the walk from his home in Upwell last Thursday with his parents Kayleigh and Lee with an aim to raise funds for Hunstanton’s RNLI station. While making overnight stops along the way, Johnathon was clapped and waved into Hunstanton by members of the public showing their support as they congratulated him on completing the huge trek. The family faced challenging and rough weather along the way, but had ma…