The Latest Patch Quest Guide (Version .61)

Maple Leaf Leftovers
Requires level 10, not a beginner
*Talk to Cassandra
*Collect 50 Maple Leaves
*Return to Cassandra with the collected items

A face accessory '''Maple Leaf''' which gives +5 to INT, STR, DEX, or LUK, and Experience according to your level.
repeatable every 2 hours

Making the Maple Syrup
*Talk to Cassandra
*Collect 25 Maple Leaves
*Return to Cassandra with the collected items

Maple Syrup and Experience according to your level.
Repeatable every 30 minutes

To correct the first one I quoted, Beginners CAN do it. It is in my islander's quest log (but I can't access it since Cassandra isn't on Maple Island ;( I can collect leaves though, so go figure <_< ).

I believe mrgiz also posted that he got a STR leaf in another forum.