1)
Sure.
Maer Dualdon: Largest and deepest: it has a “hole” or deep spot at its northern end where it reaches a depth of 1,319 feet (402 metres), but most of it is closer to 800 feet (244 meters).#Realmslore— Ed Greenwood (@TheEdVerse) March 28, 2021
2)
Lac Dinneshere: 866 feet (264 metres) at its deepest, but most of it is around 824 feet (251 metres). Roughest waters, thanks to local winds. 3)
Redwaters: smallest and shallowest of the three lakes, it’s 561 feet (171 metres) at its deepest, but 505 feet (154 metres) on average. Most placid waters, and yes, most reddish (local iron tinge).#Realmslore— Ed Greenwood (@TheEdVerse) March 28, 2021
Is there any lore reason for these lakes being named in different languages? That's a question for R.A. Salvatore, who created them and Ten-Towns around them.
I suspect the names reflect settlement by intrepid adventurers from distant lands (or in this case, via gates/portals) worlds.
Or mayhap Elminster was just teasing me when he translated.#Realmslore— Ed Greenwood (@TheEdVerse) March 29, 2021
“In one skirmish involving no less than seventeen boats, three full crews and half of a fourth were cut down and left floating in the bloodied water. On that same day, that particular lake, the southernmost of the three, had its name changed from Dellon-lune to Redwaters.”
The Crystal Shard, Chapter 2