The Galapagos Islands sit 600 miles off Ecuador's coast, and the best way to see them isn't a big-ship cruise — it's a small expedition vessel, sometimes carrying as few as 16 passengers. No casinos, no water slides. Instead, the draw is wildlife: giant tortoises, sea lions, marine iguanas, and blue-footed boobies you won't find anywhere else in the world. A recent round-up from Condé Nast Traveler sorts through nine of the standout options.

Most Galapagos cruises run about a week and hop between several islands, with daily excursions for hiking, snorkelling, kayaking, and paddleboarding. Prices are steep — typically $5,000 to $12,000 per person — but budget options exist.

For luxury travellers, Ecoventura's three yachts (Origin, Theory, Evolve) take just 20 guests each, welcome kids six and up, and throw themed send-off parties along with nightly multicourse dinners. Solo travellers get dedicated single cabins on G Adventures' Reina Silvia Voyager, a 10-day catamaran sailing from Quito. Foodies have Silversea's Silver Origin, where The Grill cooks meat tableside on hot lava stones and the chef teaches ceviche-making — though sailings sell out fast.

Adventure seekers suit the 48-passenger La Pinta from Uncruise, which packs kayaks, scuba gear, and a glass-bottom boat, and stops at the Charles Darwin Research Station. Science fans can join citizen research projects aboard HX Expeditions' MS Santa Cruz II, while families with kids might prefer the National Geographic Gemini, where young travellers earn 'Explorer-In-Training' credentials through hands-on programmes.

If space matters, Celebrity Flora carries about 100 guests but is built twice the size of its sister ship, so suites feel roomy — some balconies stretch to 321 square feet. Avalon Waterways' Treasure of the Galapagos is a 16-guest catamaran with a rare perk here: private balconies.

The budget pick is Nature Galapagos & Ecuador, whose small yachts (8-10 guests) cost around $3,000 for four to five nights — less than half the roughly $7,600 price of a week on G Adventures.

Practicalities matter more here than on most trips. You'll fly into Quito or Guayaquil, usually overnight on the mainland, then connect to the islands; some cruise lines bundle those flights. Book four to nine months out for the best choice of ships and dates, though last-minute deals can surface two to eight weeks ahead. And there's no bad season: December brings tortoise hatchlings, sea turtles nest from January, marine iguana hatchlings appear around April and May, and July is mating season for blue-footed boobies.

This is a bucket-list trip that demands planning and money, but with options now spanning family-friendly luxury to stripped-back budget yachts, it's no longer reserved solely for deep pockets.