Number | Description | OS Grid |
| Park at W end of Llyn Ogwen near Idwal Cottage | SH64846042 |
1 | Ascend on track SE to Llyn Bochlwyd | SH65545942 |
2 | Continue ascent SE to broad col. | SH66175889 |
3 | Ascend NNE to summit of Tryfan (3000ft+) | SH66385940 |
4 | Retrace route SSW to col | SH66175889 |
5 | Continue SSW and join path at base of Glyder Fach N ridge | SH66145878 |
6 | Scramble SSW up ridge (or easier path E of crest) | SH65965846 |
7 | Continue WSW to Glyder Fach | SH65645829 |
8 | Descend W on path to col | SH65255820 |
9 | Continue WNW to junction of paths at the head of Y Gribin ridge | SH65055825 |
10 | Follow path WSW along ridge to col | SH64765804 |
11 | Continue W to Glyder Fawr (3000ft+) | SH64255796 |
12 | Descend W turning NW to 900m contour | SH63885812 |
13 | Descend N to junction of paths near Llyn y Cwn | SH63815854 |
14 | Descend NNE on path W of Llyn Idwal to reach N end of Llyn | SH64425991 |
15 | Continue descent NE to start | SH64846042 |