A lesson or session with a GAIA Instructor makes a fantastic gift for someone who's already hooked on fly fishing or wants to try their hand for the first time.  Although GAIA doesn't offer gift certificates directly, many GAIA Instructors do.  Use Find and Instructor to locate a local GAIA instructor or find an Instructor near to your preferred fishing destination.  Get in touch directly or visit their website to find if they can provide for your specific requirements.  If they don't offer the service you require feel free to ask them to recommend a GAIA Instructor who does.