If you would like an effective option that is more natural & deet free then i recommend 'lemon eukalyptus insect repellent pump spray' by "repel"
holds up better than synthetic options in studies by the us dept.
Of ag, & the lemon eukalyptus plant based products are registered with the epa & recommended by the cdc for mosquitoes that carry west nile virus
. Claims good for 6hrs, may need every 2hrs.