Dan's refinishing process can be used on any piece of wood: Deck furniture, picnic tables, etc.
Australian Timber Oil is the stain he use on the segment and it is great for staining exotic woods just like the Teak the swim platform is made out of.
Step 1: Sand the piece of wood with 80 grit sandpaper, after the entire piece is sanded go over it again with 100 grit sandpaper. *Dan used a multi-tool to do the sanding in the segment.
Step 2: Stain the wood using Australian Timber Oil making sure to stain one board at a time from end to end. DO NOT over apply the stain, one good coat is enough, stain should not pool on the surface.
Step 3: Wipe excess stain with a clean cotton cloth. *If the piece of wood you're staining is especially dirty go see the guys at Northwood Paint and they will help you out with the appropriate cleaners.