The wedding is located at a camp so we are going with a business casual dress code. For the male folk a nice pair of jeans or slacks and a nice shirt with nice looking shoes (sneakers, boots, dress shoes) would be perfect and for the ladies jeans, slacks, skirt or dress with nice looking shoes as well.
This is at a camp so most of the walk ways are gravel or grass. For those family members who are wheelchair bound or have difficulties walking can drive up to where the ceremony will be held and all the buildings are handicap accessible with ramps.