Double for Hawaii?

[theriviera]

We are headed to Kauai with our 4 & 2 yo and my extended family. We are at a condo 5 minutes from the beach. We have a double bob and a single bjcm. Do I need the double? Older dc is good about walking but can get pretty whiney about it

[legaleagle]

What kind of activities are you planning on doing? What's the willingness of you/other family members to carry or wear the 2 year old.