It's certainly true that the majority of us enjoying taking photographs whilst we're on holiday, and these days as digital cameras are so readily available everybody is an amateur photographer taking hundreds of snaps whilst on holiday. However, it's important to bear a few things in mind when you take your camera abroad.
First off, It's worth taking out some travel insurance just in case your camera is lost or stolen. If you have a particularly expensive camera such as a Leica Camera then you should look into a policy with additional cover for high end cameras. Many professional photographers who have a lot of equipment and travel frequently will take out special policies that cover their equipment wherever they are. It's worth investing in insurance rather than risking loosing several Leica Cameras and other high end equipment without compensation!
Another good idea would be to take several memory cards with you. Although high capacity memory cards that can store thousands of photos are available if one card with all your pictures on should be lost, or wiped then you'll loose all your photos. It's better to use several smaller capacity cards, so it f you loose one then you won't have lost all your photos.
Finally, when taking photos overseas it is important to make sure you're aware of what you can and cannot photograph. In some countries taking photos of certain government buildings may be considered suspicious, so be careful!