Blue days 
Sailing days

Orange days
Days with 1 or 2 guests. There is room for 2 guests on Zephyr in a shared cabin.
The number of guests is visible by the number of names (ínitials)
If there is only one guest you can apply for the second spot

Green
Renovation days. The boat is, maybe, on the land and renovation is being done on the inside and outside.
If you are interested in helping with renovation and maintenance you are welcome to apply via HelpX