There are rivers and lakes all about Avalon, on the main continent and elsewhere. To traverse these you may need to use a boat (see HELP BOATS) or you might have enchantments to part waters; but most likely you will need to swim. Swimming is fairly simple - you move around using compass directions like normal but typing SWIM followed by the direction, e..g. SWIM NE to swim to the northeast. You will probably wish to avail yourself of the atigax herb, since that helps with water-breathing and ensures you lose less health fatiguing yourself while you remain in the water.