ECR4Kids SoftZone Climb and Crawl Activity Play Set Babies want to get in on the indoor jungle gym action, too! To help them avoid hurting themselves, get the ECR4Kids SoftZone Climb and Crawl Activity Play Set ($130). It comes with five large foam climbing blocks in unique shapes for babies to crawl on and toddlers to stack and climb over. Image Source: amazon.com ECR4Kids SoftZone Climb and Crawl Activity Play Set $130 from amazon.com Buy Now