If you can lift yourself from the sand, rent a four-wheel-drive vehicle and venture into the island's outback. Follow the dirt roads as they toil through alien landscapes of oddly balanced boulders, jagged cliffs, and furious seascapes. The terrain may seem harsh, but the cacti and divi divi trees love it. The tall organ-pipe cacti are known locally as cadushi, the prickly pear variety are called tuna, and the barrel species is bushi. Start from the resort area, head toward the California Lighthouse, then follow the dirt road as it traces the island's perimeter.

Ready for something completely surreal? At the south end of the High-Rise area, the tropical gardens of the Butterfly Farm, J. E. Irausquin Blvd. z/n, across the street from the Divi Phoenix Beach Resort (tel. 297/586-3656), dance with a thousand beautiful butterflies. The 46 species bred at the facility hail from every corner of the temperate world. It's easy to marvel at the colors of the ethereal flutterers, and guides provide amusing explanations of the short but sweet life of the average lepidopteran. Did you know that caterpillars double in size every 24 hours? That butterfly sex lasts for up to 48 hours? Visit as early in the day as possible -- that's when the wing-flapping is maximal. Admission is $10. Open daily from 9am to 4:30pm.

Aruba's most distinctive landmark is the Old Dutch Windmill, J. E. Irausquin Blvd. 330, around the corner from the Butterfly Farm, near Palm Beach (tel. 297/586-2060). It's an anomaly in the Caribbean, but it's authentic. Built in Friesland, Holland, in 1804, it originally drained water from low-lying land. Damaged by a storm in 1878, it was later rebuilt at another site in the Netherlands to mill grain. In 1929 another storm hit the windmill, which stood idle until 1960, when a Dutch merchant shipped it to Aruba. It reopened in 1974 to house a Dutch restaurant and late-night bar. Dutch antiques, Aruban farming implements, and a horse and carriage are the featured items of the simple, informal museum.

Although Aruba is as arid as the desert, the lush Bubali Bird Sanctuary, on J. E. Irausquin Boulevard, serves as a resting and breeding area for more than 80 species of local and migratory birds. Across the street from the Old Dutch Windmill, the sanctuary was once a salt pan. Today the two interconnected manmade lakes are flooded by overflow from a nearby water-treatment facility and surrounded by lush vegetation. The fish in the nutrient-rich ponds attract brown pelicans and black olivaceous cormorants. In the constantly undulating marsh grasses (like something out of a van Gogh painting), black-crowned night herons, Louisiana herons, great blue herons, common egrets, and snowy egrets abound. Gulls, skimmers, coots, and numerous species of ducks also make appearances. The observation tower gives birders a bird's-eye view of the oasis. Dawn and dusk, when the birds are most active, are the best times to visit. The sanctuary is always open; admission is free.

Go north from the bird sanctuary, past half of the High-Rise hotels, and turn right at the first traffic light. Proceed a mile or two to the next traffic light. Originally built in 1776 and last renovated in 1916, Santa Anna Church boasts a soaring ceiling and an intricately carved altar, communion rail, and pulpit. The neo-Gothic oak altar, carved in 1870 for a parish in the Dutch province of Noord-Brabent by Hendrik van der Geld, came to Aruba in 1928. The stained-glass windows, dating from 1932 and 1965, honor four former lay priests of Alto Vista Chapel (described in the next paragraph). The adjacent cemetery has no grass, but its hodgepodge of grave "houses" painted in tropical pastel colors is bright and meditative. The church is on Caya F. D. Figueroa at the intersection of Palm Beach in Noord (tel. 297/586-1409). Sunday Mass is celebrated at 7:30am and 6pm in Papiamento and English.

From the church, drive north for about 5 minutes. The California Lighthouse sits on a hilltop perch at Aruba's northernmost tip, but its active days are over. Part of the adjacent restaurant once served as the lighthouse keeper's home. The beacon itself has been closed to the public for a number of years, ever since someone committed suicide by jumping from its summit. The surrounding area features some of the island's most spectacular scenery -- gentle sand dunes, rocky coral shoreline, and turbulent waves. The picturesque structure gets its name from the California, a passenger ship that sank off the nearby coast before the lighthouse was completed in 1916.

Now it's time to leave paved roads behind. Turn right at the lighthouse and follow the dirt trail along the dramatic northern coast. The road's rough state precludes speeding, but within 15 minutes you'll reach another manmade attraction. Built in 1750 and renovated 200 years later, the picturesque Alto Vista Chapel radiates serenity from its cactus-studded perch overlooking the sea. The chapel, Aruba's first, was built by Caiquetio Indians and Spanish settlers before the island had its own priest. The church's ancient Spanish cross is one of the oldest European artworks in the Dutch Caribbean, and the altar's statue has a devoted local following. Secluded near the island's northwestern corner, just off the rough dirt road hugging the northeast coast, the bright yellow structure, little more than a hut, rests at the end of a winding road lined with white crosses marking the stations of the cross.

Five minutes farther down the coast, you'll come to the Bushiribana Ruins. According to local legend, in 1824 a 12-year-old boy came across gold in one of the dry creek beds on Aruba's north coast. Naturally, the discovery set off a gold frenzy. For 30 years, Arubans were allowed to collect the precious metal, provided they sold it at a set price. In 1854, a gold-mining concession was granted to the Aruba Island Goldmining Company, which built this smelter on the north coast in 1872. Although the facility operated for only 10 years, its hulking ruins still dominate the area. Climb the multitiered interior for impressive sea views. Too bad the walls have been marred with artless graffiti.

From the ruins, you'll be able to see a line of cars heading for the next site, just minutes away. The island's most photographed attraction, the Natural Bridge rises 7.5m (25 ft.) above the sea and spans 30m (100 ft.) of rock-strewn waters. Centuries of relentless pounding by the surf carved the arch out of the limestone coast. One of the Caribbean's highest and most dramatic coral structures, it's a fitting crown for the tumultuous north coast. Because the bridge acts as a buffer between the sandy beach and open ocean, many people come here to swim and picnic. The nearby thirst-aid station supplies refreshments and souvenirs.

Retrace the dirt road back to the first intersection and turn left. The road soon becomes paved, and within 5 minutes, take a right. (Signage is nonexistent here, so don't be shy about asking for directions.) Looking like something out of "The Flintstones," the eerie Ayo Rock Formations served Aruba's early inhabitants as a dwelling or religious site. The reddish-brown petroglyphs on the boulders suggest magical significance, and the strange stones look as though they were stacked by giants. The site is open daily from 9am to 5pm, and admission is free.

If you like the Ayo rocks, continue on the main road to its end. Turn right, then take another right at the sign for the Casibari Rock Formations. These alien rocks rise from the cacti- and lizard-infested hills. Although the boulders weigh several tons each, they look freshly scattered by some cyclopean dice-roller. Look for the formations that resemble birds and dragons, or climb the trail to the top of the highest rock mound for a panorama of the area. Watch your head on the path to the top, though; the tunnels have low clearance. The rock garden is open daily from 9am to 5pm, with no admission charge. The nearby stands sell souvenirs, snacks, soft drinks, and beer.