The East of England region swimming championships website can be found here :
http://www.eastswimming.org/index.php
The long course championships are being held on 28th March; 24th, 25th, 26th April; 2nd, 3rd and 8th May. Locations and further details can be found in the below schedule.
The qualifying times can be found here :
Summer Regionals
This new competition will be held at Luton on 3rd, 4th and 5th July, the qualifying times are between the above regional and county times.
The schedule can be found here
https://www.eastswimming.org/wp-content/uploads/2019/10/SEER-2020-Schedule-Summer-Meet.pdf