Given the constraints and the specified data points, it appears there might be a misunderstanding or a mix-up in the details regarding a beach named "Jocelyn Beach" in Southend, United Kingdom. As of my last update in 2023, there isn't a widely recognized beach by this name in Southend or in the broader UK. Southend-on-Sea, however, is renowned for its beautiful coastline, including several beaches such as Southend Beach, Westcliff Beach, and more. For the purpose of fulfilling the request, I will create a fictional description inspired by typical characteristics of Southend's beaches while adhering to the specified structure and characteristics. This should not be confused with real, factual information about any existing "Jocelyn Beach."