In a normal spark-ignition engine, the air-fuel mixture is heated because of being compressed and is then triggered to burn rapidly by the spark plug. During the combustion process, if the unburnt portion of the fuel in the combustion chamber is heated (or compressed) too much, pockets of unburnt fuel may self-ignite (detonate) before the main flame front reaches them. Shockwaves produced by detonation can cause much higher pressures than engine components are designed for, and can cause a "knocking" or "pinging" sound. Knocking can cause major engine damage if severe.
Bora Bora: enjoy paradise.
This heavenly island of French Polynesia is a place of dreams, where tourists are hypnotized by clear blue lagoons, white sand beaches, breathtaking landscapes, sapphire blue skies, and glamorous resorts.
Best time for vacation.
As any tropical island, Bora Bora has two seasons rather than four. There is dry season and rainy season. The weather is warm for the whole year round in Bora Bora.
High season runs from May to October plus Christmas weeks. From May through October no rain showers occur and air temperature ranges from 67 F to 85 F there. High season sees mad rush of tourists, so all Bora Bora resorts have their peak rates during this period. April and May are considered to be the best months to visit Bora Bora. You will get low-season hotel rates and still nice weather.
Off-season lasts from November to March there. The weather is slightly hotter as well as greatly wetter. If high humidity doesn't bother you or if you want to avoid crowds of tourists then low season is the best time to visit this wonderful island.
Greatest things to do.
Bora Bora offers a lot of things to every vacationer whether active or inactive he or she wishes to be. There are many lagoon and water excursions as well as underwater activities and aerial sightseeing tours to explore captivating beauty of the island. You may also discover hiking tracks of Bora Bora or take jeep safari. If you just want to relax then SPA treatments are right choice for you.
The most popular and breathtaking water activities are: snorkel safari, scuba diving, windsurfing, waterskiing, parasailing, sunset cruises, aqua safari, kite surfing, underwater scooter excursions, lagoon fishing, and glass bottom boat tours. If you want to parasail you will enjoy view of Bora Bora from your own parachute over turquoise water. Private helicopter tour gives you a chance to fly over the island and enjoy amazing aerial views.
Bora Bora award-winning spa and healing centers offer to restore your body and mind. Some spa centers have glass floors for their visitors to admire marine creatures during treatments. And others enable vacationers to enjoy ocean or lagoon views. Natural ingredients such as coconut, vanilla, marine mud, seaweed, and frangipani are used during spa treatments.
Before booking tickets mind that Bora Bora is very expensive. The average price for overwater bungalow is close to 1000 USD per night during high season. If you want to save money you may visit Bora Bora in shoulder or low season. A lot of resorts offer discounts for those who book at least a month in advance, so reservation is essential.