Mike Peters, frontman of legendary Welsh rock band The Alarm, and his wife & fellow band member Jules, are walking the length of Wales (from Prestatyn to Chepstow) to raise money for cancer patients this week.  The musicians, from Dyserth in North Wales, had originally planned to take on the 177 mile, 12 day challenge with a group of other hikers, but Covid-19 restrictions prevented them from doing that. Undeterred, the dynamic duo decided to go it alone, and…