Get under the raised house first, before the lens fogs and the crew loses the morning
The conditions that make this work hard are the same conditions that ruin the footage, so filming has to be scheduled around them.
Carry a phone out of an air conditioned room into the air under a raised house in summer and the lens fogs solid. Waiting it out costs several minutes every time, which is why crews stop bothering and the work under the house never gets shot at all.
Send the phone under first and let it sit while the crew gets set up, or keep it in a truck that is not running cold. Small habit, and it decides whether under-house footage exists.
Film that part early. Crawl work in August is finished with people by late morning, and nobody is narrating anything at two in the afternoon in this humidity.
Light it rather than fighting it. Under a raised house you are working off a work light in one hand, so set the light down, pick one position and let the camera hold still. A narrated tour through the piers looks like nothing and takes three attempts.