Generally, no. That said, you should be familiar with the workings of your camera, regardless of what type it is. You don’t have to fully understand f/stops, depth of field, and the rule of thirds, but the more you do understand, the more you’ll get out of the trip and the better your photos will be. The trip guides are there to answer your questions and offer tips, however the the amount of actual instruction you’ll get will depends on the trip and trip guide. Some trips are faster paced than others. Ultimately, the more you can learn before the trip, the more you’ll get out of the trip – you’ll be able to focus more on what you’re taking photos of rather than how to take the photos.