Castelnuovo Magra is a town located in the province of La Spezia, Liguria, and is a location that offers many opportunities for visitors. Here are some things you could do in Castelnuovo Magra:

1. Visit the Malaspina Castle: located in the town's historic center, the castle is one of Castelnuovo Magra's main attractions. Built in the 12th century, the castle has been restored over the centuries and now hosts cultural events and exhibitions.

2. Explore the historic center: the historic center of Castelnuovo Magra is a maze of narrow alleys and small squares, with many quaint old buildings. Strolling through the streets of the historic center will let you discover the authentic charm of the daily life of Ligurians.

3. Take a nature walk: Castelnuovo Magra is surrounded by green hills and valleys, perfect for hiking or biking. You could hike in the hills of Val di Magra or along the Magra River.

4. Enjoy the local cuisine-Liguria is famous for its flavorful and healthy cuisine. Castelnuovo Magra and nearby towns offer many opportunities to enjoy local specialties such as focaccia, farinata, pesto pasta, anchovies, Taggiasca olives, and Vermentino white wine.

5. Visit the beaches: Castelnuovo Magra is just a few kilometers from the beaches of Versilia, such as Forte dei Marmi and Viareggio, which offer wide sandy beaches and crystal clear waters.

6. Discover neighboring villages: the area around Castelnuovo Magra is rich in medieval villages and art cities such as Sarzana, Lerici, La Spezia, and the Cinque Terre, all easily reached by car or train.

In general, Castelnuovo Magra is a very pleasant location and offers many opportunities to spend a vacation filled with culture, nature, and relaxation.