Suggestions:
1) Head over to the other side of the river (St Paul) and catch a St Paul Saints game as well. Link:
https://saintsbaseball.com/schedule The Saints are in town Friday 9th - Sunday 11th. Its really a great time for the independent league team. In addition, there are some good places to eat around CHS Field, ex. The Bulldog, Big River Pizza, Dark Horse, Ox Cart (head to the roof top for views of CHS Field), Handsome Hog, Barrio are just a handful within a couple blocks.
2) In MPLS, only a couple blocks from Target Field is First Avenue. If your family are music fans, its pretty cool just to walk by this iconic spot and see all of the names on the side of the building that have played First Ave. Prince, U2, Beastie Boys, Aerosmith, Metallica, are just a few of the Hall of Fame artist to have played here.
https://first-avenue.com/about/thestars
3) Head over to Minnehaha Falls. If its a beautiful day outside, be sure to check out Minnehaha Falls park.
https://www.nps.gov/miss/planyourvisit/minnehah.htm
4) The food scene in the Twin Cities is amazing. I could sit here all day and give suggestions, however not knowing your families preferences might be a moot point pointing out all of my favorite spots. These links to Thrillist gives a good example of spots your family could enjoy.
https://www.thrillist.com/eat/minnea...apolis-st-paul and
https://www.thrillist.com/eat/minnea...apolis-st-paul
5) Take a walk along the Stone Arch Bridge.
https://www.minneapolisparks.org/par...e_arch_bridge/
6) We are known for our 10,000 lakes. There are plenty in the MPLS area, specifically the Chain of Lakes, plenty of activities in the summer time.
https://www.minneapolisparks.org/par...regional_park/
7) If the weather isnt the best, they could always head to the Mall of America.
https://www.mallofamerica.com/
8) Im a roof top bar or patio fan. You can get great views of the city from the following: Brits Pub (in MPLS, the biggest plus is they have lawn bowling)
https://britspub.com/ , as mentioned earlier Ox Cart (St Paul)
https://oxcartarcadeandrooftop.com/ . As for patios (too many to link them all

, in St Paul, you have WA Frost, Moscow on the Hill, La Grolla, The Happy Gnome just to name a few. In MPLS, my favorite is Psycho Suzi's
https://psychosuzis.com/ Then just a couple blocks away is Betty Dangers, where you can play mini golf, take a ride on a ferris wheel and they have some amazing Mexican-American food.
https://bettydangers.com/
Thats a small sample of what MPLS/St Paul can provide. Need anything else, have any questions, let me know.