i used to think that they needed to drop anima but realised they dont.
1.chocobo, goobber
2.airships.
3.ferry

what they need to do is when you approch any AETHERYTE CRYSTALS, AETHERIAL GATES, AETHERIAL NODES in any city/state you should be able to use 1 or 2 anime to vist any other AETHERYTE CRYSTALS, AETHERIAL GATES, AETHERIAL NODES you have previously vistited in that city/state.