Spirals

These are easier than ordinary ones, but look challenging.

Get in the correct lane as you approach (look for direction signs and lane markings).  Stay in the same lane through the roundabout.  It will be "spun out" to the far edge of the roundabout as you go round, guiding you to the correct exit.

If you need to, change lanes in the roundabout but don't cross a SOLID white line.  And know what's around you first !

See how this compares to a "drive-thru" roundabout.