I apologize, but there seems to be some confusion in your request. Lohja is not part of the Åland Islands, but rather a city in Finland. Additionally, the Åland Islands are an autonomous region of Finland and not a separate country.
Assuming that you are indeed in Lohja, Finland and wish to visit museums, I would recommend visiting the Tytyri Mine Museum. It is located in nearby Lohja and offers an underground tour of an old limestone mine, as well as exhibits on the history of mining in Finland. If you are interested in similar types of museums, you can also check out the Finnish Museum of Mining in Outokumpu or the Kemi Mine Museum in Kemi.
Lohja is actually not located in the Åland Islands, but rather in mainland Finland. Therefore, I can provide you with some popular and typical dishes from the Lohja area.
One of the most popular dishes in the region is "kalakukko," which is a traditional Finnish pastry filled with fish (usually vendace or perch) and pork fat. Other popular local dishes include "lihapiirakka," which is a meat-filled pastry, and "hernekeitto," which is a hearty pea soup typically served with ham and rye bread.
In addition to these traditional dishes, you may also want to try some Finnish specialties such as "salmiakki" (salty licorice candy), "karjalanpiirakka" (rice-filled pastries), or "poronkäristys" (reindeer stew).
As mentioned earlier, Lohja is not part of the Åland Islands, but rather a city in Finland. However, I can suggest some fun activities that locals enjoy in Lohja:
1. Hiking or biking in the beautiful Nuuksio National Park
2. Swimming, boating, or fishing in one of the many lakes in the region, such as Lake Lohjanjärvi
3. Visiting the Lohja Museum of Local History and Culture to learn about the history and culture of the area
4. Exploring the unique underground tunnels and chambers at the Tytyri Mine Museum
5. Attending cultural events and festivals, such as the Lohja Summer Festival or the Lohja Christmas Market
6. Enjoying local food and drinks at restaurants and cafes, such as Cafe Lauri or Ravintola Petteri Viking.