VOYAGE TO SPITZBERGEX. 15 



Among these hills are tracts of level fertile 

 ground, and the highest hill is some feet covered 

 with black moss. Unst contains many fresh water 

 lochs. That of Cliff is two miles long, and nearly 

 half a mile broad. The banks of this loch exhibit 

 pleasant and most beautiful scenery. From this 

 loch a few smaller ones run to the southern part of 

 the island. 



The headlands here rise to the height of sixty or 

 seventy fathoms ; but the shores of the bays and 

 harbours are low and sandy. 



About this island are scattered here and there a 

 great many very small ones. 



Around the coast are several curious natural 

 caves. One at Sha has its roof supported by oc- 

 tagonal pillars. 



At Burra Firth are a vast number of small 

 caves, running from the sea under the hills. One 

 of these only is entered once a-year, and robbed of 

 the seals which frequent it. The rest are mostly 

 inaccessible. 



To the east of this, under an arm of the hill of 

 Saxaforth, is a magnificent natural arch, three 

 hundred feet long, and of a considerable height, 

 through which a boat can row. 



The Shetland Isles, (called by the Dutch, Zet- 

 land ; and, by the Danes, Yetland,) lie between 



