In reply to Adam Moroz:
I think you may wanna do a second route on Eldorado, either Septumania, Schweiz Plaisir or Metal Hurlant. Further good climbing can be found with Sagittarius (well bolted, west facing slabs opposite to the Grimsel Hospiz), then Fair Hands Line or Mummery at Handegg. You can also do a route at Mittagflue, depending on your level either Abadia or Heidi mir wei Di.
Moreover, Furkapass is very close. You can head for the Hanibal tower where the routes are about 5 pitches, so you can do two in a day. Then Galengrat is a nice and easy classic. Good climbing also at Gross Bielenhorn, the Niedermann is a fantastic classic. Other options are the Remy brothers routes Nolens Volens, Curiosity and Fandango. Chli Bielenhorn also has a few good routes, including RoRu, Sacremotion and the easier Perrenoud. A trip to Graue Wand is very worthwhile, try the classic Niedermann, or Eisbrecher if you want to be more challenged.
Another idea is a short trip to Nufenenpass. At Poncione di Cassino Baggio there are several nice routes (Picadilly di Bedretto, Herbstwind, Dr grüen Nils), and Poncione di Ruino has some steep crack climbing.
If you are discrete, you can bivy/wild camp on all of Grimsel, Furka and Nufenen.