CedarWorks - CedarWorks Serendipity 4 Swingset - Have a family with a toddler and an active 4 year old who loves to swing and slide? Give the Serendipity 4 a closer look. The Hurrah structure has a 30&quot; playdeck with smaller accessories for your little one&#039;s needs. That connects to an Encore structure with a 60&quot; playdeck featuring some great accessories for them as they become more confident in their abilities. Assembly is required.