We recently sold our ancient Tandem (now called Oasis) and bought a new Oasis with the more modern deck plan, sail capability, T&S rudder and "newer" hull design. One of the things the old tandem had that I used a lot was a red bag for the forward hatch. It was great for wallet, keys, camera, cell phone, GPS, etc. and it kept everything dry.
Sadly, the Oasis no longer comes with that hatch bag, but as it turns out, Hobie has a retrofit kit for the new Twist & Seal 6" hatch that includes an adapter plate and bag! It is a little smaller than the old bag, but larger than the new seat-back pouches. The installation was quick and easy:
1. Unscrew the old hatch (6 screws) and remove
2. slide out the old backing plate (it's split for easy removal)
3. slide in the new backing plate
4. re-attach hatch face and re-install hatch screws.
Here's what it looks like installed:
For fast access and dry storage for small to medium sized items, this can't be beat! It should fit any of the new Hobie brand 6" hatches.