Hello! That sounds like an incredible plan, exploring Lençóis, Mucugê, Andaraí. These places are fantastic, each brimming with charm and natural beauty. Here are some travel recommendations.

Best Time to Visit:
The best time to visit Lençóis, Mucugê, Andaraí would be during the dry season which generally falls between April to November. The temperatures are pleasant and rainfall is minimal, allowing for uninterrupted exploration.

Route and Accessibility:
You can fly to Salvador and then take a bus or drive to reach Lençóis, which is about 6 hours away. From there, it's a 2-hour drive to Mucugê, and later, Andaraí is around 1 hour away from Mucugê. Make sure to check the bus schedules as they can vary, and if you decide to rent a car, have a good map or GPS system handy.

Accommodation and Booking:
There are a variety of accommodations available in Lençóis, from budget-based hostels to more luxurious hotels. It is recommended to book in advance, especially during the peak season. Mucugê and Andaraí have fewer options but you can find comfortable guest houses and pousadas (traditional Brazilian bed and breakfast).

Clothing and Essentials:
Pack light clothes for warm weather, but also include a light jacket as evenings can get a bit chilly. A good pair of hiking shoes is essential if you plan on exploring the parks. Don't forget your hats, sunglasses, sunscreen, bug repellent, and a water bottle.

Health and Safety:
Ensure that you are up-to-date with your routine vaccines. Also, keep in mind the heat and protect yourself from the sun. Stay hydrated, especially during hiking. Be aware of your surroundings and it is safer to avoid isolated areas at night.

Local Etiquette and Respect:
Respect the natural surroundings, do not litter and avoid disturbing the wildlife. Brazilians are warm and friendly; a smile goes a long way! Knowing a few phrases in Portuguese could be helpful.