Our partners at Exoticca want to help you cross the Galapagos Islands off your bucket list with this newly-launched sale that features five guided tours, saving up to $4000.

These 10- to 26-night tours offer city experiences in popular South American destinations paired with wildlife sightings in the Galapagos Islands, starting at $1599 per person. With departure options into 2022 from Atlanta; Boston; Chicago; Denver; Fort Lauderdale; Los Angeles; Miami; New York; Orlando or Washington, D.C., here are our favorite fully refundable tours:

• $1599 ... Galapagos Islands & Amazon rainforest 10-night excursion with a guided Quito city tour, an Amazon wildlife walk, San Cristobal (home to red-footed boobies and sea lions) or Santa Cruz and Guayaquil
• $1699 ... Ecuador's volcanoes, Baños & Galapagos Islands over 10 nights with tours in Quito, Baños (the "Gateway to the Amazon"), the Cotopaxi Volcano, excursion to Quilotoa, Santa Cruz and Guayaquil
• $2099 ... Quito, Baños waterfalls & Galapagos Islands 12-night trip incl. visits to volcanic Lake Quilotoa, Ingapirca ruins and overnights on 2 different Galapagos Islands
• $2599 ... Journey from Peru to Ecuador over 17 nights incl. Machu Picchu and the Galapagos Islands
• $3999 ... Ultimate South America 26-night tour that includes visits to the Amazon rainforest and the Galapagos Islands (Ecuador), Buenos Aires and Iguazu Falls (Argentina), and Rio de Janeiro, the Sacred Valley and Machu Picchu (Peru)

What's included: roundtrip flights (additional departure cities are available starting at $100 more), intra-country flights, well-reviewed accommodations, ground transportation, sightseeing with expert guides (Ecuador-only itineraries, the first three, have a max group size of 16 people), entrance fees and meals (varies by itinerary), and free cancellation up to 60 days in advance. Pricing is per person and availability varies by city and package.

To book by phone (rather than online via the links above), call 888-273-1533 from 9 a.m. - midnight ET Mondays-Fridays or 8 a.m. - 9 p.m. ET Saturdays-Sundays. Mention the following vacation codes when calling: 10-night w/Amazon (7338); 10-night Quito, Baños & Galapagos (10257); 12-night Quito & waterfalls (3524); 17-night Peru to Ecuador (9461); 26-night ultimate South America (10330).