1990: Tropical Ponies
SAIL AWAY
Mulberry unicorn with dark orange, dark neon pink and green mane and tail, orange and green sailboat/yacht symbol.
Well, since this is a UK zone, we're going to call ponies by their proper United Kingdom names (although sadly most of these have been trampled into the dust over the years by their American equivalents). Although labelled Hula Hula in the North American release, the unicorn from the Tropical Pony set was named Sail Away over here, probably because of her sailing boat symbol.
(I had her from new and I still have her card - the name is often written Sailaway online, but it is actually Sail Away - as two words!)
Sail Away was another boat-related pony, then, and she was the first Tropical Pony to be introduced in the comics, by dint of her travelling into unchartered waters to meet the already existing residents of Ponyland.
Her backcard story talks about a sand boat that she built which got swept out to sea towards a dazzling tropical island, carrying the Tropical Ponies to their new home (cunningly known as the Tropical Isle!).
I can't remember which colour comb Sail Away came with - but her card says it was a fish ;)