Sasha Obama's summer vacation

It's another summer of fun for the younger daughter of President Obama. Sasha Obama, center, is seen here walking with her family under the Space Shuttle Atlantis as they visit the Kennedy Space Center in Cape Canaveral, Fla. on April 29, 2011.

Sasha Obama also took a trip to South Africa this summer. She's seen here, center, with her sister Malia, and first lady Michelle Obama. They took turns reading to children from "The Cat in the Hat," by Dr. Seuss, during their visit to the Emthonjeni Community Center in Zandspruit Township, Johannesburg, South Africa, on June 21, 2011.

Sasha Obama sits beside her mother, first lady Michelle Obama and sister Malia as she takes turns reading to children from "The Cat in the Hat," by Dr. Seuss, during their visit to the Emthonjeni Community Center in Zandspruit Township, Johannesburg, South Africa, on June 21, 2011.

Sasha Obama walks behind her mother first lady Michelle Obama as the family visits the Emthonjeni Community Center in Zandspruit Township, Johannesburg, South Africa, Tuesday, June 21, 2011. Also seen at rear are Malia Obama, mother Marian Robinson, niece Leslie Robinson and nephew Avery Robinson.

Sasha Obama, second and third from left, dances with her relatives and children and caretakers as they visit the Emthonjeni Community Center in Zandspruit Township, Johannesburg, South Africa, Tuesday, June 21, 2011.

Sasha marches with her mother and sister during their visit to the Emthonjeni Community Center in Zandspruit Township, Johannesburg, South Africa, Tuesday, June 21, 2011.

Sasha visits the Emthonjeni Community Center with her mother and sister in June 2011. The community center is located in Zandspruit Township, Johannesburg, South Africa.

Sasha Obama and Malia Obama are embraced by children as they accompany their mother, first lady Michelle Obama on a visit to the Emthonjeni Community Center in Zandspruit Township, Johannesburg, South Africa, Tuesday, June 21, 2011.

AP Photo/ Debbie Yazbek, Nelson Mandela Foundation

In this photo provided by the Nelson Mandel Foundation, Sasha Obama poses with her mother and sister when meeting with former South African President Nelson Mandela, at this home, in Houghton, South Africa.

Malia and Sasha Obama were draped in blankets given to them upon landing in Pretoria, en route to Johannesburg, South Africa, Monday, June 20, 2011, during their week long trip to Africa.

In 2010, Sasha Obama, then 8, was quite the globetrotter. Sasha got royal treatment at the Marivent Palace on Aug. 8, 2010, in Palma de Mallorca, Spain.

From left, Sasha Obama, King Juan Carlos of Spain, first lady Michelle Obama, Queen Sofia of Spain and Princess Letizia of Spain at the Marivent Palace on Aug. 8, 2010, in Palma de Mallorca, Spain.

Photos: The Spanish Royal Family
Photos: Michelle Obama
Photos: Malia and Sasha Obama

Sasha, center, visits the House of the Moorish King in Ronda on Aug. 7, 2010, during her vacation in Spain with her mother, first lady Michelle Obama.

Photos: Michelle Obama
Photos: Malia and Sasha Obama

Sasha Obama enjoys a day at the beach club at Villa Padierna in Estepona, Spain, on Aug. 6, 2010.

Photos: Malia and Sasha Obama
Photos: The Obamas in Maine

First lady Michelle Obama, second left, visits the Alhambra palace on Aug. 5, 2010, in Granada, Spain.

Photos: Michelle Obama
Photos: The Obamas in Maine

President Obama greets first lady Michelle Obama and daughter Sasha upon their arrival at a barbecue in celebration of his 49th birthday on the South Lawn of the White House, Aug. 8, 2010. The first lady and Sasha had just returned to the White House after a vacation in Spain.

Photos: Michelle Obama
Photos: Malia and Sasha Obama

Sasha and her parents board Air Force One at Andrews Air Force Base, Md., on Saturday, Aug. 14, 2010 for a weekend in Panama City, Fla. Sasha's sister Malia was at summer camp during this trip. The family planned to enjoy the area's Gulf Coast recreational activities.

Photo by Pete Souza/The White House via Getty

President Obama and daughter Sasha swim at Alligator Point on Aug. 14, 2010, in Panama City Beach, Fla. The president traveled to Panama City Beach with first lady Michelle Obama and Sasha to meet with local business owners and officials and to encourage Americans to travel to Gulf Coast beaches.

Sasha and her parents take a boat ride in St. Andrews Bay in Panama City Beach, Fla., Sunday, Aug. 15, 2010.

President Obama and first lady Michelle Obama react as daughter Sasha gets a hole-in-one on the first hole at Pirate's Island Golf in Panama City Beach, Fla. on Aug. 14, 2010.

President Obama, first lady Michelle Obama and their daughter, Sasha, play miniature golf at Pirate's Island Golf in Panama City Beach, Fla. on Aug. 14, 2010.

Sasha, center, returns to the White House with her parents following a weekend trip to Florida in mid-August.

Sasha rides bicycles with her mom in Manuel F. Correllus State Forest in West Tisbury, Mass., while on vacation in Martha's Vineyard in late August.

Sasha, her sister, Malia, and her father, President Obama, leave the Bunch of Grapes book store in Vineyard Haven, Mass. on Aug. 20, 2010. The family was vacationing in Martha's Vineyard.

Photos: The Obamas in Maine Photos: The Obamas on the Gulf Coast