| Business Model | Franchised hop-on hop-off sightseeing brand; local operators run tours under City Sightseeing Worldwide, some company-owned or joint ventures | Online marketplace selling tours and activities run by third-party local operators | — | — |
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| Experience Types | Open-top hop-on hop-off bus tours; boat tours, sightseeing trains, walking tours and night tours in selected cities | Guided tours, day trips, attraction tickets, cruises and boat tours, food tours, outdoor and adventure activities | — | — |
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| Destinations Covered | About 100 cities across six continents (count varies as franchises change) | Worldwide; more than 400,000 experiences listed | — | — |
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| Cancellation Policy | Free cancellation on online bookings via the global website; tickets valid 12 months from purchase; flexible vouchers offered | Set per product; most use a standard policy of full refund if cancelled at least 24 hours before start; some custom (partial refund) or non-refundable | — | — |
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| Payment Options | — | Pay upfront or Reserve Now and Pay Later on eligible experiences | — | — |
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| Loyalty Programme | — | Viator Rewards: earn credit on eligible direct bookings, redeemable on future bookings within 180 days; same-currency only | — | — |
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| Booking Channels | Global booking website, partner agents and local sales points | Website, iOS and Android apps; also distributed via travel agents and affiliate partners | — | — |
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| Customer Support | — | 24/7 customer service; in-platform messaging with tour operators | — | — |
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| Headquarters | Seville, Spain (founded 1999) | Needham, Massachusetts, USA | — | — |
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| Parent Company | — | Tripadvisor | — | — |
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| Signature Products | Red open-top hop-on hop-off buses with recorded multilingual commentary; live guides on many tours | — | — | — |
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| Ticket Format | Online tickets; one-day and multi-day passes; audio commentary streamed on your own phone in your language | — | — | — |
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| Child Policy | Children travel free in a growing number of cities | — | — | — |
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