St. Patrick’s Day Activity – Green River!

St. Patrick’s Day activity is a fun activity that uses green jello to recreate the Chicago River on St. Patrick’s Day. Your kids will absolutely love to play with jello. Its consistency will guarantee your kids lots of play fun!

Chicago River on St. Patrick’s Day

Since 1962 Chicago dyes it’s river green for St. Patrick’s Day. Originally, the city used green dye to detect pollution and leaks in the river. Unfortunately, they did more harm than good due to the high amount of chemicals in the dye.

Nowadays, they are using a vegetable-based dye that dyes the river green within 45 minutes. Depending on the wind and its direction the river can stay green for a couple of days.

What do you need for this activity?

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For the St. Patrick’s Day activity you will need the following:

  • An aluminum pan or a baking sheet
  • Aluminum foil
  • Jello – that makes at least 4 cups.
  • Mega blocks (optional)
  • Paper (optional)
  • Tape (optional)
  • Pen (optional)
  • Boat, figures, spoon, etc. – Anything your kid could use to play with the jello.

St. Patrick’s Day Activity – Set Up:

  • First of all, you want to use a base where the jello can’t run out of. I used an aluminum pan.
St. Patrick's Day Activity - Pan
  • Then, prepare the jello as described on the package. I used one pack that made around 4 cups of jello. You can make more if you prefer!
St. Patrick's Day Activity - jello
  • Last, you want to add some aluminum foil to the pan to create “a river.” Add the jello when you are ready. Refrigerate for at least 30 minutes. Or until it’s firm and not a liquid anymore.
St. Patrick's Day Activity - Mega Blocks recommendation

The next step is optional:

  • In addition, I used mega blocks to create the city of Chicago. I taped some foam sheets (you can use regular paper) on the mega blocks. Then, I drew the different towers including windows and doors. You can add whatever elements you like.

Then, I gave my kid a boat, a bridge, a spoon, and some other items for her to play with. She absolutely loved the consistency of the jello and to move it around.

St. Patrick's Day Activity - Boat

Toy Recommendation

Mega Blocks are a wonderful tool for lots of open-ended play. Also, they are a great tool to support your children’s fine motor skills (for younger and older children). The recommended age for these blocks is 12 months to 5 years.

Mega Blocks - Toy recommendation

In addition, both of my children started to build with Mega Blocks around 12 months. My 16-months-old builds towers with those blocks, while my 3-1/2-year-old creates entire cities.

But my favorite part is that my husband enjoys playing with them as well. Toys like these help my children to bond with us.


For more St. Patrick’s Day activities check out my Instagram. I will share activities on a daily basis. And until March 17 everything is St. Patrick’s Day themed.