If the South Pacific is on your cruising horizon, here's Sea Mercy, a humanitarian Clean Wake organization with several project categories that welcome volunteers with the kinds of skills and willingness to help that are second nature to SSCA members. You can enlist via online registration before you cast off.
An example of SSCA's global reach was the response of SSCA members in the South Pacific and coordination cooperation stateside to help in the disaster response efforts of Sea Mercy on Vanuatu in the aftermath of the level 5 Cyclone Pam in March 2015. That Sea Mercy was able to step in quickly to assess the destruction and marshal necessary resources whether human, vessel or material, was an astonishing achievement and a solid introduction for SSCA. The organization learned the ropes in 2014 with Cyclone Ian in Tonga.
A relatively young but growing organization, Sea Mercy's vision is "to be the most effective preventive, curative, promotional, and rehabilitative floating health care provider to (11) remote island nations" in the South Pacific and deliver health care, education, and economic development assistance. In three years Sea Mercy has targeted 3 of those island nations: Kingdom of Tonga, Republic of Fiji, and Vanuatu.
Sea Mercy engages the attention of volunteers with the tag line "Sailing with a greater purpose. One vessel can make a difference... Our fleet can change the world". There is an extensive menu of ways in which cruisers in the South Pacific, based on their resumes, skills, talents, and interests, can participate in different programs whether long term, periodically, or in a quick response mode.
Enlist as a volunteer online by visiting seamercy.org.