The Viperine snake (Natrix maura) spans the whole of Iberia, whilst other reptiles are restricted to a minute part such as the Spanish Algyroides (Algyroides marchi) of the Sierra Cazorla. The greatest numbers of endemic lizards are those isolated on the Canary Islands.

Including the Balearic and Canary islands, there are around 90 species of reptiles and amphibians in Iberia. Thirteen of these are snakes with only 3 of those being vipers. Snakes can be difficult to observe as generally they disappear at the first sounds of approach.

During the summer months, night active lizards (Geckos) will delight people with their wall clinging abilities whilst hunting for moths attracted to lights. During the daytime look quietly at emerged rocks and logs along river sides to see sunbathing Mediterranean Pond Terrapins (Mauremys leprosa). They are sensitive to the slightest movement and will quickly dive if they feel threatened.

The Chameleon is fast losing its coastal habitat in the south due to the unlimited building boom. It is a fascinating reptile sadly unable to live inland away from the expanding concrete and curious domestic cats. This coastal growth also has a destructive effect on breeding grounds of sea turtles and tortoise.