Journey to Bolonchen.—Bad Road.—Large Hacienda.—Imposing Gateway.—An inhospitable Host.—Ruins of Ytsimpte.—Ruined Edifice.—Staircase with sculptured Stones.—Square Building.—Façade decorated with Pillars.—Ruined Walls.—Remains of a sculptured Figure.—Character and Aspect of the Ruins.—Departure.—Arrival at the Village of Bolonchen.—Scene of Contentment.—Wells.—Derivation of the Word Bolonchen.—Origin of the Wells unknown.—The Cura.—Visit to an extraordinary Cave.—Entrance to it.—Precipitous Descents.—A wild Scene.—Rude Ladders.—Dangers of the Descent.—Indian Name of this Cave.—A subterranean Ball-room.—Cavernous Chamber.—Numerous Passages.—Great Number of Ladders.—Rocky Basin of Water.—Great Depth of the Cave.—A Bath in the Basin.—Its Indian Name.—Return to the Rocky Chamber.—Exploration of another Passage.—Another Basin.—Indian Stories.—Two other Passages and Basins.—Seven Basins in all.—Indian Names of the remaining five.—Want of Philosophical Instruments.—Surface of the Country.—This Cave the sole Watering-place of a large Indian Village.—Return.—Visit to the Cura.—Report of more Ruins.