Can I ride my Giant Talon 3 downhill?
More than likely - The occasional small jump won't hurt the Talon, but landing big jumps will require perfection (Those forks will make surviving a bad landing next to impossible). 

We would need to know what the trails were, and how difficult they are, but if they have 'easy' trails that have chicken lines around anything that cannot be rolled over, the bike can be used.