If you decide a website you previously bookmarked with Safari on your iPad is no longer meaningful, you can change it or get rid of it:
To remove a bookmark (or folder), tap the Bookmarks icon and then tap Edit. Tap the red circle next to the bookmark you want to toss off the list, and then tap Delete.
To remove a single bookmark or folder, swipe its name from left to right and then tap the red Delete button.
To change a bookmark name or location, tap Edit and then tap the bookmark. The Edit Bookmark screen appears, showing the name, URL, and location of the bookmark already filled in. Tap the fields you want to change. In the Name field, tap the X in the gray circle and then use the keyboard to enter a new title. In the Location field, tap the > symbol and scroll up or down the list until you find a new home for your bookmark.
To create a new folder for your bookmarks, tap Edit and then tap the New Folder button. Enter the name of the new folder and choose where to put it.
To move a bookmark up or down in a list, tap Edit and then drag the three bars to the right of the bookmark’s name to its new resting place.