Here's why:
* The "HM" system was removed in these games to focus on more diverse gameplay.
* Instead of HMs, there are now Ride Pokemon that you can call upon to perform certain actions, such as traversing water.
To navigate water in Alpha Sapphire, you'll need to:
1. Progress through the story until you reach the area where you encounter Latios or Latias.
2. Catch this legendary Pokemon.
3. Use Latios or Latias's special ability to fly over water.
While it's disappointing not to have Surf, the alternative method of using Ride Pokemon adds a new dimension to exploring the region!