Take a tour of this "miniature earth" that researchers at the University of Arizona use to explore the future of the planet. Experience the world's ecosystems, from the salty ocean to the humid rainforest, replicated under Biosphere 2's roof. Guided tours are organized all year long.

Olbia’s top sight is this medieval Pisan-Romanesque church, hewn out of Galluran granite. In the apse there are two 13th-century frescoes, the left-hand one depicting San Simplicio, the patron saint of Olbia. The Festa di San Simplicio, Olbia’s biggest festival, is celebrated for three days in mid-May.

The Cape Pallarenda Conservation Park is a 44-hectare protected conservation park 10 kilometres northeast of Townsville. The park offers 15 walking and mountain biking trails of varying lengths and difficulty, fishing and boating, bird watching and shell collecting. Cape Pallarenda was a strategic defence location in World War II and structures from that era can be spotted along the walking trails. The former Cape Pallarenda Quarantine Station is now heritage-listed. It was built in 1915–1916 using the materials brought over from the original quarantine station on Magnetic Island.

Nessebar, a city-museum and UNESCO World Heritage Site, is another marvellous day trip from Burgas, located just 35 kilometres away. This ancient town, often called the "Pearl of the Black Sea", sits on a small peninsula connected to the mainland by a narrow causeway, offering stunning sea views on both sides. Its cobblestone streets wind through a historic centre filled with over a millennium of architectural treasures, including the Church of St. Sofia, a 5th-century basilica, and other medieval churches like St. John the Baptist and St. Stephen. The Old Town, a maze of narrow lanes and 18th-century houses, invites leisurely exploration, with artisan shops and street vendors adding to its charm. Nessebar was once a Thracian settlement and later a Greek colony, playing a key role in the development of trade and culture in the Black Sea region. Its unique blend of ancient ruins, Byzantine churches, and a lively atmosphere makes it a captivating destination for history enthusiasts and casual vacationers.