In the Park — Continued

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A glacier-formed lake beside steep cliffs with a sandy beach at the southern end, Echo Lake Beach is one of the only formal beaches on the island where you can swim without freezing your buns off. It's dramatically pretty, very family-oriented, with a lifeguard, restrooms, changing rooms, and no commercial establishments at all. Because the beach area is relatively small, it can get a bit crowded on hot summer days.

The first 20 yards or so of the Echo Lake swimming area are shallow, perfect for young children. Since there are no facilities for refreshments available at the lake, be sure to bring your own. You can drive a half mile south on Route 102 past the lake's entrance towards Southwest Harbor to the supermarket on the left.

Here's a little secret that you may have fun exploring, provided you're a good swimmer and have your own snorkeling equipment. Swim out past the lifeguard-protected area, about 100 yards from the shore. The depth remains about five to six feet for most of this area. You'll notice many large boulders at the base of the cliffs at this point, known as "breakdown." With your snorkeling gear in place, you can swim to where there's a sudden, dramatic, underwater cliff where the depth of the lake drops to 66 feet. It's very intense.

If you need a respite from the crowded beach, the Beech Cliffs Trail awaits you. This trail begins at the northern end of the Echo Lake parking lot and rapidly heads up to the top of the cliffs that tower over the beach. The climb includes four vertical ladders and is well worth the effort. Bring binoculars, a camera and water. This is a very rocky and relatively difficult climb — don't try jaunting up there in flip-flops. Acrophobes, young children and dogs should not go on this trail. Once at the top, you may choose to continue on the northbound loop to the Canada Cliffs, a 5-minute jaunt north to a better and higher view of the surrounding area. Round trip for the entire hike takes about an hour.

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There are about 55 miles of well-maintained, bucolic, endlessly beautiful carriage roads for hiking, horseback riding, and bicycling in the park. No motor vehicles are allowed on these roads. If bringing your own bicycle is not feasible, excellent bikes are available for rent in Bar Harbor for a half or full day or more. You may also rent a bike rack to avoid the arduous (and sometimes dangerous) task of pedaling from town into the park.

These carriage roads offer some of the best examples you'll find of the care and forethought that went into the design and construction of Acadia National Park's public access byways.

Some of the carriage roads trails have moderate-to-steep grades, others are easier. You'll definitely want to consult a trail map.

Acadia offers far too many wonderful hiking trails to list here. Over the years, we've hiked almost every trail on the island; it's our favorite activity there and a primary reason for loving the park so much. Pick up a trail guide in town or at the Park Entrance Visitor Center, and plan a hike according to your skill level. There are well-marked trails that range from level, shoreline walks to outrageous near-vertical climbs, and everything in between. Here's a sampling of our favorites:

• The Precipice — for the most challenging hike and climb (see below)
• The Beehive to the Bowl — for a shorter version of a precipice-like vertical climb
• The Perpendicular/Razorback loop — for experienced, intrepid hikers
• Beech Cliffs trail — the most rewarding hike relative to its length
• Sargent Mountain via the Asticou Trail — a long but moderate hike to a beautiful mountain-top pond
• Conner's Nubble — a relatively short and easy but rewarding interior hike

Plan ahead. Except for trails designated as "easy," most require adequate preparation. Always bring detailed maps, plenty to drink, good hiking shoes or boots, your camera, and a watch. Don't start out on hiking trails in the late afternoon; once the sun begins to set it will get very dark and easy to lose sight of trail markers. Many people have inquired about cellphone reception on the trails — we recommend you don't depend on it unless your phone uses satellite connectivity. If you're bringing your dog, stay off the trails with vertical climbs unless you can carry the dog in your pack. Overnight camping in the park is prohibited except in designated campgrounds.

At one spot on the Loop Road, you'll see a lot of cars parked and people gawking through binoculars at what look like insects on the towering cliffs above. Actually, they're climbers on a 1,020-foot vertical climb to the top of Mount Champlain, on the appropriately-named Precipice Trail. At the base of this trail is a warning sign that should be read carefully and taken quite seriously.

Although not for acrophobes or small children, it's not as difficult as it seems, and if you're bold enough to try it, make sure you're wearing good hiking shoes, have plenty of water, and go early in the day to avoid crowds and the potentially hot midday sun on your back as you climb. You won't need technical equipment (pitons, ropes, etc.), as the designers of the trail installed permanent hand-holds, ladders, and rails at those points that need them.

Before starting out, consult trail maps and plan on returning by hiking around the back of the mountain instead of attempting to climb back down the way you came up; climbing down is not recommended. The Precipice Trail is frequently closed July through mid-August because of a family of endangered peregrine falcons that nests mid-trail every year. If you intend to bring children, they must be tall enough to reach six feet with their hands extended above their heads. There are two false summits before the real thing, but once you see that marker at the top you'll know you're there. The views from this summit are among the best on the island.

A mile or so down the Loop Road, you will come to the trail that climbs up the rocky face of The Beehive, a mountain just south of The Precipice, visible from the shores of Sand Beach. While only about half as high as The Precipice, we feel that the Beehive climb is in some ways more intense, as it tends to be more exposed and more consistently vertical. All of the caveats we mentioned above for the Precipice Trail apply to the Beehive Trail as well.

Although the summit of The Beehive is not as dramatic as that of The Precipice, this limitation is compensated by the continuation of the trail to The Bowl, which sits only a ten-minute hike behind the Beehive.

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There are several ponds and lakes scattered throughout the island. Most hiking trails will come upon one or another at some point. There may be signs that identify them as drinking water sources (like Long Pond, Jordan Pond, and the two Hadlock Ponds) or ecologically fragile waters, but this is not always the case, so you need to consult reputable guide maps or other resources to know where you are and what restrictions there are on its use. For those ponds or lakes that are not restricted, you can toss your clothes and jump in. Obviously, you'll need to be cautious about rocks, leeches and other hazards below the surface that may not be visible.

The Bowl, a large circular pond behind The Beehive, and Sargent Mountain Pond (also known as The Lake of the Clouds) are two of our favorites. Both require a substantial hike to reach, but are wonderful spots for swimming or just cooling off your feet. The Bowl has a few near-perfect rock ledges that make access to the water easy. If you want to bring your dog to The Bowl, you'll have to take the Bowl Loop Trail, since The Beehive climb is impossible with a dog.

By the way, there are two legends about Sargent Mountain Pond: it's bottomless, and it's the home of a serpent. Only one of these legends has been disproved.