Please take a warm jacket or jumper as the temperatures can be cooler at the top of the peak. From October to April the temperatures can reach below freezing. It is forbidden to remove any stones or plants from the National Park. This excursion will travel up some mountain roads to approximately 7,000 feet above sea level and eventually to 11,600 feet with the cable car. This tour is not recommended to passengers who suffer from heart problems or have previously undergone heart surgery, pregnant women, respiratory problems including asthma or infants under the age of 2 years. Comfortable, flat, walking shoes are recommended. This tour is subject to weather conditions and may be cancelled at short notice. In inclement weather, the access to Mount Teide may close at short notice. In which case an alternative route will be taken. The time spent at the top of the peak is approximately 30 minutes which may vary depending on weather conditions on the day. Due to its popularity, queuing may be experienced at the cable car.