You can order a local taxi on 041 710 747 or 031 205 611. Bikes can be rented from various accommodation providers and tour agencies for around €12 to €20 per day.
Car parking in Bled is in short supply, and is expensive (€2.50 an hour in some locations, charged from 8am to 8pm, with a maximum stay of two hours). It's a good idea to leave your car at your accommodation (if it has free parking) and walk, cycle or take the tourist train to get around.
There's free parking at the castle, and usually spaces available in the large parking lot behind Hotel Krim, off Ljubljanska cesta (€7 per day). Further out, there is unrestricted parking in a lot behind the Infocenter Triglavska Roža Bled.
In July and August, a bus leaves Bled bus station daily at 8.30am, 9.30am and 10.30am and heads for Vintgar Gorge, stopping at several points, including Bled Castle, along the way, and arriving about 40 minutes later. There's regular return service at approximately the same intervals.