If you have around 6 hours to spend in Beccles, there are a few things you could do:
1. Explore the town by foot - Beccles is a quaint town with picturesque streets and architecture. You can take a walk around and soak in the natural beauty. Estimated time: 1-2 hours
2. Visit Beccles Museum - This museum has interactive displays that showcase the history of the town. Estimated time: 1-2 hours
3. Go on a boat tour - You can take a trip on the River Waveney and explore the beautiful surroundings. Estimated time: 1-2 hours
4. Visit St. Michael's Church - This historic church is located in the town centre and is worth a visit. Estimated time: 30 minutes - 1 hour
5. Enjoy some local food - Beccles has several cafes and restaurants that serve delicious local food. You could try out some of the delicacies while you explore the town. Estimated time: 1-2 hours
In conclusion, there are several things you could do in Beccles if you have around 6 hours to spend. You could explore the town by foot, visit the museum, go on a boat tour, visit the historic church, or enjoy some local food.