Robin Roberts has been noticeably missing from Good Morning America, with lots of fans wondering where she has been. Thankfully, she's doing just fine, taking time off for some rest and relaxation.

The GMA anchor has been tweeting while on vacation in Kona in Hawaii. She has been busy relaxing on the beach, playing tennis and dining along the beautiful waterfront.

Click to see photos from her vacation.

There is no word when she'll be back on GMA, but Roberts appears to be enjoying her time off from the ABC morning show.

The former ESPN reporter has taken on and survived two very serious illnesses over the past five years. First, Roberts beat breast cancer in 2007. Then she stunned fans in 2012 when she announced that she was leaving the Good Morning America for a while to be treated for a rare blood and bone-marrow disorder called myelodysplastic syndrome, or MDS.

"Sometimes treatment for cancer can lead to other serious medical issues and that's what I'm facing right now," Roberts said at the time. "The reason I am sharing this with everybody right now is because later today I begin what's known as pre-treatment."

After receiving a bone marrow transplant from her older sister and enduring several rounds of intense chemotherapy, Roberts went into recovery and recorded the whole process for her viewers. She triumphantly returned to her anchor desk in February of this year.

Roberts also has a memoir that is set to be released in April 2014.

MORE: Robin Roberts Twitter Photos

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