The Fly Fishing Show in Marlborough is billed as the largest gathering for fly fishers in all of New England, held each January at the Royal Plaza Trade Center. Browse exhibitors and fly shops, watch casting demos and featured fly tiers, attend classes and seminars in the Destination Theater and Author's Booth, and catch the IF4 International Fly Fishing Film Festival on Friday night; a free Learning Center offers basic fly-casting, fly-tying, and knot instruction. Friday 10am–6pm, Saturday 9am–5:30pm, Sunday 9am–4:30pm; admission $20/day, $35 two-day, $45 three-day (kids 6–12 $5, military with ID $10).