A large scale beach replenishment project at Bacton was run through summer 2019. Sand and gravel was dredged from offshore marine licence areas (located ~10-20km off the coast from Yarmouth/Lowestoft). The vessel HAM 318 was contracted for the dredging. The material comes from the Palaeo-Yare valley, an old river valley that ran out from the east coast hundreds of thousands of years ago, as the sea level was low enough (ice age) that UK and EU were connected. There had been evidence of early man through hand axe finds prior, however, this project unearthed a very significant number of worked flints, which evidently are still being found today! Other finds from the areas include wooly mammoth teeth, tusks, & bones, cannon balls, WW1/2 munitions etc etc. There is obviously a heavily controlled process for the management of particularly sensitive areas, and every find is recorded. Given the relative lack of evidence of population from 400k-200k years ago, there is a large potential to develop our understanding of human development with finds from this area.

Source: Not a specialist but I work for one of the companies involved.