我們是開車去的，沒有經曆過汽車。但是從慕尼黑乘火車來的遊客都在菲森轉汽車。我替你在網上看了一下2019 的info， 見內。

From Füssen, use bus 73 (direction Steingaden / Garmisch-Partenkrichen) or bus 78 (direction Schwangau) and exit at stop Hohenschwangau – Alpseestraße. These buses are generally marked Königschlösser (Royal Castles). Tickets are available from the bus driver, or included in the Bayern Ticket (but not in normal train tickets or the Allgäu-Schwaben Ticket).