Further to Marko's comment on drag settings, if you are a baitcast kinda guy, I find using one and leaving it in free spool works phenomenally.
The other comments about creek mouths are also bang on.
Also I have a question for the carp experts myself. I've noticed the carp turning from a light golden colour earlier in the year to a very dark brownish gold, especially on their backs. Is this a result of warmer water temps or what?