In response to your question, another person indicated the Sony RX10IV camera is the best bridge camera for your travel needs. I purchased an RX10 IV in December and here's the information on it's safety features in different environments.

"High resistance to dust and moisture. Dust resistant, moisture resistant sealant and construction of operating parts allow the camera to withstand rigorous shooting of outdoor nature, sports, and wildlife in rugged environments under rainy, dusty, humid, and other difficult conditions."

Although I've not had time to fully learned to use all the features (and there are many), I love this camera. The RX10 has a Zeiss 24-600 zoom lens and it's lightening fast. Quality of the images are comparable to my Sony SLR (or better). You can find the complete info with a google search.