Recommendations for first drone?

Hi, I'm in the market for a drone to take with me on an upcoming trip to Italy and Greece. I mostly want the ability to take photos (and maybe some video) of my wife and I in situations where a drone would be useful (e.g., on a rowboat in the water, etc.), so I don't necessarily need a drone that can fly really high or fast. Since I'm not sure if I'll use the drone again after this trip, I don't want to spend too much. I've heard the DJI Spark is great, but at $400 it costs more than I'd prefer to spend. The Hover Camera Passport looks like it could be a good option. However, I read something suggesting that drones that use "optical flow" technology, such as the Hover, require operation above a flat surface. Is that true? I plan to use the drone alongside the cliffs in Santorini, which is not a flat surface, and I want to make sure the drone functions well in that environment.​I'd greatly appreciate any insights into these two drones, or other entry-level drones that might be worth considering. Thanks in advance. via /r/drones http://bit.ly/2UQ626O