My first three brighten your day. My second four are how you make a call. Together we are ancient and tell the time.

A British coastal town that floats your boat? A barnacled thing, or the armour of a seedling?

I’m powerful at home but useless in the wild, unless the bears start watching cable television.

You can use me to you scuba, sink, and swim You have me sometimes at a bar and get a whim I can make you see clear Or sometimes cloudy with beer What am I?

A gentle sound of air's embrace; quick like a whisper, it cuts through space. In sneakers' dance, it finds its name, a signature move in athletic fame.