Yes to sandbox. Great for sensory play.
Mine has a sandbox and a water table. Both are big successes. Although the water table is currently more liked since its newer
@Ellen what sandbox did you get for your LO?
https://a.co/d/8yRKB5e. Honestly cause UT was the cheapest at tge time. But it's doing well
My husband just bought this, going to set it up after he mows!! https://a.co/d/2mb2Jbg
My husband has suggested getting my son two of those cheap plastic swimming pools as make shift sandbox and covers.
Trampoline