The next one is May 31st. The cost is 5 bucks per person, or 20 per family.
From their website:
Sunday, May 31st
For kids ages 8 and under
Create a large-scale scene to be temporarily displayed on the walls of the Arts Center!
Hudson River Drawing
For kids ages 8 and up
Make art while enjoying the nature beauty of the Hudson River, which runs right through our city! Join us along the banks of the Hudson River behind the Arts Center for a tutorial on drawing the natural landscape.
Call (518) 273-0552 x231 to find out what else The Arts Center has to offer.
You can also register for the Street Painting at Riverfest if you are feeling particularly artistic.
Again, from their website:
Saturday, June 20 | Monument Square
$10 Per Person
The Arts Center’s Street Painting Competition is an annual Riverfest tradition, sponsored by the The City of Troy, River Street Merchants, and the Troy Downtown Collaborative.
If you've never been street painting before, it's time to try this new kind of canvas! Transform Troy's sidewalks into works of art and compete for $1000 in cash prizes, half awarded by a committee of judges and half by "People's Choice" awards.
Registrations are now being accepted. Spaces are extremely limited and cost $10 per person.