There is a $ 5.00 per session yoga class on Friday nights at School St Yoga in Waterville  on Fri evenings.from 5:30-6:45. http://www.schoolstreetyoga.com/Workshops.html#Mindfulness_Communications
The fee for this over time over course could prove to be costly. However, if attending just once in a blue moon, sort of speak of course is much less,  so I thought it was worth mentioning.