There are no dangerous neighborhoods in Puerto del Carmen. Feel free to travel around the sights and suburbs, walk in the evening hours, not forgetting about the elementary rules of safety. In addition, the guards of order carefully patrol the resort, so for your safety during the rest in Puerto del Carmen should not be especially afraid. Although standard security measures will certainly not be superfluous.
Do not pay attention and do not engage in dialogue with street distributors of free lottery tickets who work for local clubs. They are completely harmless, but they are outrageously intrusive.