Traveling by train from the Paris airport to the Bernese Overland area, we plan to stop along the way. We will be taking the fast train that goes from Paris to Basel. Looks like it stops in Dijon and Mulhouse. Which would you recommend as a stop to sightsee, get lunch, and stretch our legs midway? We will be traveling late July. Our group consists of 2 adults in their mid to late 60s, 2 adults in their late 30s, and a 3-year-old. Both stops look like they're only about a 10 minute walk to the town center. Do you know if both train stations have luggage storage on site? If you've been to both Dijon and Mulhouse, which would you recommend for this purpose?
Thank you!