A search for two Dublin men missing in Glendalough, Co Wicklow, will resume at first light today. The search, involving the Garda and the Dublin-Wicklow mountain rescue team, got under way last night when the two men, who are in their 30s and from Drumcondra, failed to return from a walk. A Gardaspokesman said early today that it was not clear where exactly the men had gone walking but they had not set out dressed for hill-climbing.When the alarm was raised, a Garda helicopter joined in the search with the Dublin-Wicklow mountain rescue team but it had to return to base at about 10 p.m. because of bad weather.