How to Build a Swing between Two Trees

How to Build a Swing between Two Trees (Tree Swing into the Lake!)
The proper way to build a swing between two trees using a flexible joint common to many Tree-House building Projects. The flexible joint is important, because it allows for independent swaying of the two trees.
This particular project was a little tricky because I wanted to build the swing in a way that I could jump from it and land safely in the lake.

This required me to build in some offsets onto the trees so the swing would move perpendicularly to the lake and provide an adequate launch into the safer depths of the lake.

I did end up digging a small channel in the lake just in case I fell short on a jump.

When I drilled through the skinnier branch a crack appeared along the length of the tree, I posted in a treehouse FB group and they said it was a surface crack and not to be concerned with it... I placed some zip-ties just in case...

Supplies:
Swing Seat: https://amzn.to/3vEg5Ra
Swing Chain: https://www.homedepot.com/p/Everbilt-...
Swing Eye Hook Anchors: https://amzn.to/3QhoP9B
Locking Carabiners: https://amzn.to/3CkCKWs
4”x6”, 8ft PT Beam: https://www.homedepot.com/p/4-in-x-6-...
2”x6” Beams: https://www.homedepot.com/p/WeatherSh...
5/8” stainless steel rod: https://www.homedepot.com/p/Everbilt-...
5/8” Fastener Hardware: https://amzn.to/3VKL6Oa
Deck Screws: https://amzn.to/3X0rZ3s

Tools:
Hammer Drill: https://amzn.to/3GhUEdD
5/8” Hammer Drill Bit: https://amzn.to/3XnW6lR
Level: https://amzn.to/3Z8RxgK
Drill: https://amzn.to/3jHplRM
Chop Saw: https://amzn.to/3X76qyo
Angle Grinder: https://amzn.to/3CqS6sG
Socket Set: https://amzn.to/3VLcRWK