REM do Tough Mudder On the 12th September 9 REM workers took part in Tough Mudder 2015. Tough Mudder is a team-orientated 10-12 mile obstacle course to test physical strength and mental grit. Any donations were gratefully received. Well done to the boys here at REM for completing Toughmudder 2015. They managed to raise a fabulous £876.50 which was donated to Pendleside