I just got access to tidal wave as a skill... Built a nice civilization, planted a tidal wave near the enemy. The wave kinda damaged the enemy, leaving a few of their cities intact (i don't know why), then the wave continued and wiped out every single one of my cities across the map...

I tried defending with a mountain wall between enemy territory and my own (as tall as I could manage) but it was obliterated

I tried building my entire territory 'one above sea level' (same effect)

So my question: How can I defend effectively against a tidal wave? (especially one placed by me!)

(the map in question was IIWI - I already beat it using just human power!)

If anyone has the answer to this, I'd be interested to hear it. The manual indicates that high land or land surrounded by high walls of land shouldn't be effected by tidal waves, but that's not what I'm seeing either. On my maps a tidal wave equals instant death for all my followers, no matter how high above the water they are (unless I save a few by tossing land up as the tidal wave rolls in, which is presumably how the CPU survives.)

In my case I'm seeing this on CCALAG (map 117), which *seems* like it should be the perfect map for a tsunami. All the evil followers start on very low land, good followers start in the mountains, and aside from tsunami you only have one other elemental spell.

in the good old days i played this game on the Amiga 500+ :)
to protect from tidal waves you have to you the basalt ability in the ocean and then raise it as a wall this should buffer the tidal wave

That presents an interesting problem on the CCALAG map, since it doesn't allow any earth powers at all...