Yes, the Belle Isle attractions are old enough to be on the "Today" show Smucker's jar. (You have to be at least 100 to get your photo on the jar).
The Belle Isle attractions are 110 years old.

Crain's Detroit Business reports that there will be celebrations today for the Belle Isle Aquarium and Belle Isle Conservatory.
Here's what's planned for the birthday celebration, according to Crains:
Family friendly fun: Arts and crafts, face painting and vintage games are on the agenda from 10 a.m. to 4 p.m. at the conservatory and aquarium.
Souvenirs: The conservatory will be selling limited edition T-shirts and coffee mugs.
Meet and greet: From 1 p.m. to 4 p.m., meet Belle Isle park staff in an open house at the Flynn Pavilion.
Kayaking, yoga and more: The anniversary celebration is part of the larger Belle Isle Summer Saturday events on the island. Activities include yoga from 10:30 to 11:30 a.m. at the conservatory, dance lessons from 1 p.m. to 3 p.m. near the Flynn Pavilion and kayaking from 10 a.m. to 5 p.m. at Belle Isle Beach.