Transportation

Animals
Animals can travel anywhere
While on an animal, you can only perform animal attacks + any magic or item
Animal Deaths
In Ocean time passes automatically, and you drift to the shore, near dead.
In Air The fate of your party depends on where you land. (ocean, mountain, desert, etc)
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Roads
Traveling along roads provides increased speed when traveling.
Occasional fighting
Land Vehicle Travel is limited to roads

Off-road
Slower travel
Allows access to secret areas
Randomly generated landscape is traversed. Frequent battles

Air
If the animal is killed you crash into the ground. If you crash into the ocean, time passes automatically, and you drift to the shore, near dead.
Airships allow normal battles in the air + airship attacks

Water
Submarines – can withstand a large amount of attack, you can fight back with submarine only
Sea Animals – magic and animal attacks only
Ships / Boats – these are like normal battles + ship/boat can attack as well