Alderaan Blue Mastery Datacron

You can see this datacron from the river, but you are supposed to go up to a higher level of the mountains and take the tram down onto the island. However if you are good at jumping, you can simply jump up the rocks that make up the island if you pick the right spot to start.

Quick Travel / Taxi

Run to the Zipline

There is a small tram on a metal wire just west of House Alde.

Wait for the Tram

Once the tram is coming back up and is close to the platform, you can jump onto the tram.

Don’t try to jump onto the wire as your character will fall though. Ride the tram to the island with the datacron.

Alternative

If you do not want to wait for the tram, you can also jump down into the river where the island with the datacron is. If you go on the side of the island that has a high peak on it, you will be able to find a sloped ledge that you can jump up on to if you are mounted. You can then easily jump up the side of the island and get the datacron.