Do you have any Field Trips planned? What do you do to prepare for them? Are the a culmination of a unit study or just an ad-hoc let's go do this today? Is the unit study planned because of the field trip or is it the other way round?
We are going to try to go to Paris this fall--provided we can catch a Space-A hop over to Europe (sometimes military planes have some seats available for passengers for a small fee--about $20 or so a person, but the requirements are strict--one traveller must be Active Duty or Retired and the others must be his/her dependants.) So, we are studying French history, art history, French language, French literature, French scientists. (I got us an apartment for the two weeks we plan to be there for about what we would pay for a hotel here.)
After that, we are moving to another state because of my job (I did investigate what needs to be done to homeschool legally) and the move is going to be another project.