If your dream vacation includes quiet coves instead of crowded ports and up-close animal encounters instead of onboard bells and whistles, you might be a good candidate for an expedition cruise aboard National Geographic Sea Lion. The 62-passenger ship, one of six vessels in the Lindblad Expeditions-National Geographic fleet, spends its summers in Alaska and its winters in Costa Rica and Panama, with a few fall sailings on the Columbia and Snake rivers in the Pacific Northwest. Lindblad sailings cost significantly more than most big-ship cruises, but you're not paying for traditional luxury -- at least not in the form of butler service or haute cuisine. What sets a Lindblad expedition apart is the intimate experience of each destination. The small size of National Geographic Sea Lion allows for visits to spots like Petersburg, Alaska or Playas del Coco in Costa Rica -- a tiny fishing villages that are inaccessible to larger vessels. On some days the ship won't visit any ports at all. Instead, it anchors in remote coves where passengers could kayak in calm waters, view wildlife from a Zodiac landing craft or go snorkeling or hiking ashore. Leading both the excursions and the onboard enrichment program aboard Sea Lion is a team of friendly and knowledgeable naturalists. In addition to running Zodiacs and guiding passengers through the woods, they can often be found on deck answering questions about whales or helping passengers use the ship's viewing telescope to get better views of a far-off bald eagle. In the evenings, they mingle with passengers over dinner and give short talks in the lounge on everything from local geology to the migratory patterns of humpback whales. They're joined by a complement of other staff, many unique to Lindblad, including a photography instructor and an undersea specialist who makes regular dives with a camera to bring back footage of the colorful creatures living in the waters below. The ship's route is flexible, subject to the whims of the weather, the tides and even the wildlife. The ship will veer off at a moment's notice to check out a mother bear and her cubs on shore or to follow a pod of orca whales. When one potential anchorage was made inaccessible by weather, we spent the morning looking for humpbacks instead. Such last-minute changes are accommodated smoothly and efficiently by the expedition staff. The ship is small enough that everyone soon learns each other's names (helped by the Lindblad-supplied name tags) and keeps to more or less the same schedule. There's a single dining room with a single seating for each meal, and the naturalist lectures are the only show in town when it comes to evening entertainment. The relatively limited options don't bother this easygoing crowd. Of the morning wake-up call, which comes promptly at 7 a.m. over the shipwide PA system, one passenger said with a smile, "It reminds me of summer camp!" Of course, Sea Lion won't be right for everyone. There's no elevator, so this isn't an appropriate choice for passengers in wheelchairs. For that matter, the motion on itineraries in the Pacific also means that it's not recommended for passengers with mobility issues of any kind. It may also not be ideal for a honeymoon or romantic anniversary trip either, unless you snag one of just four cabins on the ship with beds that can be converted to doubles; most cabins only have twins. That said, it's hard to care much where you're sleeping at night when you spend your days hiking, kayaking and exploring by Zodiac. Travelers cruise Lindblad for the in-depth destination experience, and Sea Lion is set up to deliver every time.

Inclusions Included with your cruise fare: Three meals per day (plus snacks) in the dining room All nonalcoholic drinks onboard, including coffee and tea, soda, juice and water Select alcoholic drinks during social hour each evening (about 6 to 7 p.m.) Daily outings and excursions including the use of kayaks, paddleboards and snorkel equipment All enrichment lectures Reusable water bottles Use of onboard dryers Morning stretch/yoga Not included with your cruise fare: Alcoholic drinks (on most itineraries; Columbia and Snake Rivers is an exception) Recommended gratuities of $12 to $14 per person, per day Wi-Fi Spa services Gear or souvenirs from the onboard shop The voyage DVD (about $50)