Don't forget, the Almonte Celtfest is THIS WEEKEND!
All the details for this family friendly, and extremely affordable (pay what you can) celebration of Irish music and culture in the Ottawa Valley style, are available at the Almonte Celtfest website.
Besides the superb, live, on-stage entertainment, there are also music sessions and performances in the local pubs, instrument workshops in fiddle, bodhran ("borr-ann"), tin whistle (including an uilleann pipe demonstration), by extremely talented local musicians, and the O'Connell Session Tent where you can bring your own instrument along to the Park and join in the jam (which is an informal jam, all are welcome). (The session tent, I recall, is usually down by the stage, on your right as you look at the stage.)
And this year the Fest is going more green (appropriate, no?). See their latest green initiative here.
Schedule day by day here.