In 2019, ASLO will meet in San Juan, Puerto Rico. The theme of this meeting will be Planet Water: Challenges and Successes/Planeta Agua: Retos y exitos. The dates of the meeting run from Saturday to Saturday, with the scientific portion taking place Sunday to Friday (24 February to 1 March). We are encouraging sign-up for a variety of community service projects that will be organized to help those in Puerto Rico as they continue to recover from the devastating hurricanes. We invite you to participate in this dialogue among limnologists and oceanographers from around the world. Our conference theme is particularly fitting as we face challenges with water on a global scale as well as on the island of Puerto Rico.