GMC Tours is a complete booking engine for excursions, activities and guided tours. Publish tours with scheduled departures, per-person price tiers, add-ons, coupons and gift cards; take deposits or full payment via Stripe and PayPal. An overbooking-proof seat hold locks each departure at checkout, and waitlists auto-promote freed seats. Run it as a single operator or as a multi-host marketplace with commissions and Stripe Connect payouts. Includes a reseller API, webhooks, iCal channel sync, day-sheet manifests, participant CSV export, reviews, an admin audit log with fine-grained booking permissions (refund, cancel, capacity, check-in, privacy). Frontend, admin and emails ship in English, Spanish and Italian. Compatible with Joomla 5 and Joomla 6.