i was referring to the official rulebook, page 6, diagram 5. it looks like it has to border it.

it doesn't.

ok, thanks. but you have to admit that that picture is quite confusing!

yes but the map is pretty clear.

actually there is some water at northeast of kiel also in the map, but in the official rulebook it looks to be connected with Heli, while here not.

it is confusing. the edge of the zone along the baltic is considered to be only denmark. sorta sucks so dont keep a fleet there too long.

yes but it's clearly delineated as part of denmark, not part of baltic or skag.

not so clearly, dj, at least on my sight.

If you do choose to go from Heligoland to Baltic via Sweden don't expect to make it in two moves.

heh heh, yes, that's true. were you talking about hel or ska, wolf89?

You can clearly see the national border above the Kiel Canal. I don't think the rulebook could be any clearer:
"Kiel and Constantinople: Because of the waterways that run
through these two provinces, they’re considered as having one coast.
Fleets can enter them along one coast and be considered anywhere
along the coastline. For example, a Fleet could move from the Black
Sea to Constantinople on one turn (“F Bla–Con”) and then on a later
turn move from Constantinople to the Aegean Sea (or other adjacent
provinces). Likewise, a Fleet could move from Holland to Kiel on
one turn and then move from Kiel to Berlin on a later turn (through
the Kiel Canal) without having to go around or go to Denmark.
Armies can also pass into and out of these provinces, freely bridging
these waterways. This doesn’t mean that units can jump over
these provinces."

Here is a better, searchable and copyable publication of the rules: http://www.stabbeurfou.org/docs/regles/en/diplomacy_rulebook.pdf