If you are anywhere near trees and bushes they will come out at dusk and suck your bone marrow. If you are near water the Asian tiger mosquitoes will attack you 24/7. -Bring Deet and use it depending on conditions. If you get into grassy areas it will repel the ticks and chiggers. There is nothing worse than walking thru a grassy spot and picking up a few hundred chiggers.
The area that the meet is held will probably have deer moving thru at night.