If you are in San Pablo, Belize and interested in visiting museums, a good nearby option is the House of Culture in nearby Orange Walk Town. Other museums in Belize that might interest you and are relatively close include the Museum of Belize in Belize City and the Maya Archaeological Museum in San Ignacio.
As a language model, I don't have access to real-time information on local dishes in San Pablo, Belize. However, some of the most popular and typical dishes in Belize include Rice and beans, Fry jacks (deep-fried dough), Stewed chicken, Garnaches (fried tortillas with beans, cheese, and sauce), Salbutes (fried corn tortillas with shredded chicken, lettuce, and tomato), and Conch fritters (deep-fried balls made from conch meat). You may be able to find some of these dishes in San Pablo or nearby areas.
San Pablo is a small village in Belize, and while it may not have many tourist attractions, there are still fun activities that locals enjoy. Some popular activities among locals include hiking in the nearby jungles and forests, exploring the local wildlife and nature reserves such as the Shipstern Nature Reserve or the Crooked Tree Wildlife Sanctuary, fishing and boating in the nearby rivers and lagoons, and attending cultural events such as the annual San Joaquin Fiesta in nearby San Joaquin Village.