On 6 June 2009, she completed a 45.9 km circumnavigation of the Manhattan Island Marathon Swim to benefit the Quiero Sonreír foundation at the age of 41. Quiero Sonreír raises funds for surgeries or medical treatments for Mexican low-income children with cleft lip and palate, as well as oncological treatments for children with cancer and other diseases.
On 12 November 2016, she finished 7th in the 22 km Reto Acapulco in Mexico in 7 hours 12 minutes at the age of 48.
She attempted a crossing of the Tsugaru Channel on 28 September 2016, but abandoned the swim after 5 hours due to the deteriorating conditions and strong winds.
On 9 November 2019, she finished 6th in the 22 km Reto Acapulco in Mexico in 7 hours 10 minutes 24 seconds at the age of 51.
She organized the Corazón de Mar Bahía de Banderas, 10 km and 34 km marathon swims along the Pacific coast of Mexico across the Banderas Bay. A 34 km swim that she completed in 9 hours 14 minutes on 24 October 2020 at the age of 52.
On 18 August 2013, she finished 12th in the 28.1 km Ederle Swim from Battery Park from Manhattan Island to Sandy Hook, New Jersey in 5 hours 50 minutes 6 seconds at the age of 45.
On 2 July 2015, she crossed the 14.4 km Strait of Gibraltar from Spain in 4 hours 23 minutes in 2015, her charity swim to benefit Quiero Sonreír at the age of 47.
On 20 August 2018, Hawley completed a 35 km crossing of the North Channel between Scotland and Northern Ireland in 13 hours 14 minutes at the age of 50.
