A feat of Spanish colonial military architecture, the Castillo San Felipe de Barajas is one of Cartagena's most prized attractions. The fortress, whose construction finished in the late 18th century, was never seized — and not for a lack of attempted forays. Part of its sophisticated system of underground tunnels is open to the public. A guided tour (audio guides available) is highly recommended.

Founded in 1833, the Gothenburg Museum of Natural History is the oldest museum in the city and it showcases the wonders of the natural world with its diverse range of exhibits and collections that explore various aspects of biology, geology, and palaeontology. From lifelike dioramas of wildlife habitats to displays of fossils and minerals, the museum provides a fascinating journey through time and the complexities of the natural environment.

Alston Park remains a Napa favorite throughout the seasons with 157 acres of rolling hills and open spaces. There are 3 miles of trails open to equestrians, mountain bikers, hikers, and dog walkers. The Redwood Creek tributary climbs to the upper area, which is a popular off-leash dog area.

World-renowned for their ornithological, archaeological and cultural significance, the Skellig Islands lay out to sea and can be reached by visitors on a small boat from Portmagee, Ballinskelligs or Caherdaniel. Skellig Michael, or Great Skellig, is a mysterious and awe-inspiring place where tourists flock all year round. 1,300 years ago, early Christian monks built a hermitage here, which is now a UNESCO World Heritage Site. In the coastal village of Portmagee you'll also find the Skelligs Experience Visitor Centre, where you can follow an audio-visual tour recreating the magic of the Skellig region and enjoy its history. At the near St. Finian’s Bay, a great pleasure awaits: Europe’s most westerly chocolate factory, Skelligs Chocolate - where you can enjoy a warm hot chocolate as the waves crash on the beach outside.