Any suitable Summer activities for a kindergarten kid?

Bring him in a farm where he can feed animals, plant and harvest veggies or fruits. I brought my daughter in a zoo in Tagaytay she enjoyed feeding the animals there. 2 weeks ago, we were in La Trinidad where she harvested strawberries and lettuce. She enjoyed that a lot!

"Kidpreneur" po. Set-up ka po ng mini store nya sa harap ng bahay mo. Pwedeng palamig or ice candy ang mga paninda nya. Tapos yung kikitain nya ay i-deposito nyo po sa banko under sa pangalan nya. Para bata pa lang ay matuto ng mag control at pahalagahan ang pera.

Promo terbesar expert care sudah dimulai, diskon hingga Rp.100.000 sedang berlangsung di shopee, ada juga voucher diskon 100% alias gratis bagi bunda yang beruntung. Buruan cek di https://shope.ee/9UfEMMqqTg (id-28853)

Enroll him in a Taekwondo or Art Class. Or in a mini manager class at Jollibee, McDonald's or Friday's.

How about sports? Ready Steady Go Kids has a good program for toddlers to 6-7 years old :)