Can't believe you don't know Beeliegh if you've fished Essex for 16 years,after all there's only three rivers in Essex that are more than a running tap. Location:- approx 1 mile West of Maldon, it's where the Chelmer and Blackwater Navigation (River Chelmer) and River Blackwater meet, there's a wier for run-off and the canal loops around Heybridge and finishes at the Sea Lock. The Blackwater estuary's (renamed River Chelmer once through Maldon) tidal limit is the weir. There's been freshwater fish of various specie on the seaward side of the weir for as long as I can remember, and I'm long past 21!!. It's renown for Mullet for which Sam was having a crack and throws up the odd Sea Trout. As Jim mentioned, these area's are a "no mans land" and can surprise most. A friend of mine, a few years ago, caught a 5lb + Pike while spinning for Schoolies with a fly spoon there. It look none the worst for it's sea water dip!!.